u/TapirTrouble

In her memoirs, Agatha Christie describes receiving an unexpected financial windfall -- The London Evening News offered her 500 pounds (equivalent to well over 26 thousand pounds today) to serialize The Man in the Brown Suit. I was trying to come up with a date for this, and the best I could do was sometime in late 1923. (The serialized version came out in November of that year, and the complete novel was published the following summer.)

Her husband Archie suggested that she could buy a car. (I was interested to hear that back in the 1920s, you could buy a pretty good horse for that much -- and I guess that's the technological equivalent.) I'm assuming that they didn't have one already, because Agatha was astonished to hear Archie say this. Her family (though comfortably off) hadn't owned one -- she'd mentioned that they didn't even have a horse and carriage when they lived in Torquay. She wrote, "Nobody I knew in our circle of friends had a car. I was still imbued with the notion that cars were for the rich." She stared at Archie "like a zombie" (honestly I hadn't expected to come across that comparison in a Christie book).

So she bought a Morris Cowley. The type is referred to by auto historians as "bullnose" (after the round-topped radiator used on some early Morris cars), though she describes it as "bottle-nosed" in her memoirs. Apparently it was grey. I compared photos and it looks like she's in the longer 4-door touring version, rather than the two-seater or coupe.
https://en.wikipedia.org/wiki/Morris_Cowley

It seems that Archie knew how to drive already -- maybe he'd learned in the military? He'd given her a couple of lessons, but she was still pretty nervous on the main roads. Her book mentions this was happening during the General Strike, but the only reference I could find was to one that happened in spring 1926, and it didn't seem likely that she'd have waited for years before learning how to drive. So either it was some other labour disruption she meant, or she had forgotten the exact circumstances (understandable after 30+ years).

She pointed out in her book that you didn't have to pass a driving test to get a license back then (and this was also the case in a lot of other places -- some US states didn't require that until after WWII). There's a rather funny description of her problems trying to back up, and stalling the engine. But she became expert after practice, and describes how freeing it was, to be able to go to places whenever you wanted. She could drive down to Torquay to see her mom, and they could go visit friends who lived in remote areas. (Another reason why that General Strike anecdote is probably inaccurate, since that happened weeks after her mother's death.)
"I don't think anything has given me more pleasure, more joy of achievement, than my dear bottle-nosed Morris Cowley."

Most of the driver's eye view Morris Cowley videos on YouTube are the smaller two-seaters
https://www.youtube.com/watch?v=bhvkqZ6faD0
https://www.youtube.com/watch?v=UnFL-XButpM
https://www.youtube.com/watch?v=5TbhO5qwOy4

Outside view of one of the tourers, driving around in a field. It's a 1925, though it looks like the design probably didn't change much until 1926.
https://www.youtube.com/watch?v=Pzqy61ogi7Y

A 1926 Morris Oxford tourer, which looks somewhat similar
https://www.youtube.com/watch?v=Nz15lA7uydY

The starting procedure:
https://www.youtube.com/watch?v=bMe90Y4UQWg
https://www.youtube.com/watch?v=kjcRBw1H8Ww

Sometimes Agatha Christie mentions particular items that may have some personal significance for her.

I was reading Murder in the Mews when I came across this description:

"... a small smart-looking brief case"
"The case was unlocked. Inside it was fitted with shagreen brushes and toilet bottles. There were two magazines in it but nothing else."

I had a certain idea in my mind when I saw "brief case", but when I researched it, I noticed that a literal "brief case" used by lawyers can actually be bulkier than the flat satchel I'd been thinking of. This recent news story describes one government official with a kind of rolling suitcase full of legal documents.
https://atlantablackstar.com/2026/08/03/jeanine-pirro-spotted-fleeing-white-house-with-mystery-box-and-suitcase/

The lock in the description suggests that it's probably hard-shelled (unlike some work brief-cases today that are made from leather or heavy-duty fabric).
Later Inspector Japp mentions that he "Looked in all the bottles -- felt the lining". So it has some kind of fabric lining inside.

Several days later, Poirot notices that the case has disappeared from the owner's home. He suspects that it's been disposed of, and he visits a golf course where the owner's a member. Upon hearing from the staff that the person had taken "a little case" out on the course, he requests the lake be searched. Japp tells Poirot that an "expensively fitted dressing-case" was recovered -- changing the description a bit from the original one.

I found some photos that may help illustrate what the case looked like. It's meant to hold the same kinds of items you might have in a toiletry bag or Dopp kit today. One example is from the Victoria and Albert Museum, made around 1908. Christie doesn't specify exactly how big it is, the shape, and whether it has a handle -- this one seems relatively small (not as big as a present-day attaché case or laptop bag). I would imagine that the example in the book is also pretty small, since the person was carrying it in one hand or under their arm, with a couple of golf clubs in the other.
https://collections.vam.ac.uk/item/O315275/dressing-case/dressing-case-unknown/

The other example of a dressing case is more lavish, the kind of thing that I imagined from "expensively fitted". One thing they have in common is internal compartments so the items inside are not just cushioned but stay in place and don't jumble together when the case is transported. That's a drawback to the much simpler Dopp kits, especially if they don't have a contrasting lining to make items easier to see.
https://www.osgwbag.com/what-is-a-dopp-kit/

I had to look up shagreen, which was covering the brush set in the book, but then I realized that I already had seen it or at least a form of it. The rough, granular skin of sharks and rays that was traditionally used in East Asia to cover sword handles, glasses cases, and other surfaces that needed to be tough, non-slip, and water-resistant was called this in the West. (There's also a similar textured leather type made from horsehide.) It was in fashion in the 1930s, used in Art Deco and modernist designs, when the story was published.
https://en.wikipedia.org/wiki/Shagreen

The reason the dressing-case stood out for me -- I recently read Christie's memoirs. She describes an incident that happened in late December 1914. WWI was underway, and her boyfriend Archie had come home on leave. There's a rather revealing description of how Archie had said earlier that he was very opposed to getting married just then.
"Entirely the wrong thing to do," he said. "All my friends think so. Just rushing into things, and then what happens? [...] you've left behind a young widow, perhaps a child coming -- it's selfish and wrong." (p. 240)

At this point, Agatha was 24 years old -- hardly a youngster, and this wasn't her first relationship or even her first sort-of engagement. She had been thinking they should get married, and argued with Archie about it, but accepted his view.

It was three days before Christmas, and Agatha was supposed to meet up with Archie in London. They'd then take the train to Bristol, and spend Christmas with his parents.

"Archie arrived at the hotel on [Dec 23] the morning of our departure [...] with a present for me. It was a magnificent dressing-case, completely fitted inside, and a thing that any millionaires might have confidently taken to the Ritz. If he had brought a ring [...] I should have accepted it with eager pride and pleasure -- but for some reason I revolted violently against the dressing-case. I felt it was an absurd extravagance, and not a thing I should ever use. What was the good of my going back home to continue nursing in a hospital with an exciting dressing-case suitable for a holiday in peacetime abroad? I said I didn't want it, and he would have to take it back. He was angry; I was angry. I made him take it away. An hour later he returned and we made it up. We wondered what on earth had come over us. How could we be so foolish? He admitted that it was a silly kind of present. I admitted that I had been ungracious to say so." (p. 240)

They arrived at Archie's family's home in Bristol, but a few hours later Archie knocked at Agatha's bedroom door, rousted her out of bed, and told her he'd changed his mind, and wanted to get married the next day. They had another argument about it, from opposite sides. But eventually they had a hasty wedding ceremony on the 24th. Archie's family was upset with them, so they boarded the train for Agatha's hometown of Torquay. They'd phoned ahead to the Grand Hotel (still operating today) and booked a room for the night.

"We climbed on the train, and he suddenly produced, rather like a conjuror, an extra suitcase. "I hope," he said nervously to his new young bride, "I hope that you are not going to be cross about this."
"Archie! It's the dressing-case!"
"Yes. I didn't take it back. You don't mind, do you?"
"Of course I don't mind. It's lovely to have it."
There we were, going on a journey with it -- and our wedding journey too." (p. 244)

[They spent Christmas Day with Agatha's family, and the next day they went to London and she said goodbye to him as he went back to France and the war. I don't know what happened to the dressing-case, after all that -- if it's still with Agatha's possessions at Greenway, or if it eventually wore out after all the travel back and forth to the Middle East. Agatha's choice of the word "suitcase" rather than "box" suggests to me that it was larger than the V&A brown dressing-case in the photos, probably with a handle.]

Big thanks to u/Cool-Professional298 for the heads-up. (The zoo staff suspected that Fifi would be having the baby soon because she was getting so big, but they weren't sure exactly when it would happen.)

Video here:
https://www.youtube.com/shorts/MdPOzrBU5PY
https://www.instagram.com/hertfordshirezoo/reel/Dazls39tNYK/

https://hertfordshirezoo.com/news/lowland-tapir-calf-born-at-hertfordshire-zoo/

"Hertfordshire Zoo is delighted to announce the birth of a healthy lowland tapir calf to mum Fifi on Wednesday 8th July.

The arrival marks the first lowland tapir calf to be born at Hertfordshire Zoo in 14 years and is an exciting milestone for the zoo’s conservation breeding programme.

Following a remarkable 430 day pregnancy, Fifi gave birth to a healthy calf, which was standing within just 10 minutes before taking its first all important feed from mum shortly afterwards."

It's a male -- no name announced yet, but his mom is Coco. It sounds like she had a female calf last year.

https://mexiconewsdaily.com/news/chiapas-zoo-welcomes-newborn-tapir-conservation-win-for-endangered-mammal/

I've been doing a project for a few years where I put Christies out in the Little Free Libraries around my area. Since I don't have a ton of money, I ended up hunting through secondhand stores and looking online for book lots on sale.

Probably others have noticed this pattern on eBay -- especially since the pandemic, sellers are much more likely to send an offer if you put an item in your cart or save it in your watchlist. I don't know if it's because eBay software is making it easier to do this, or if people are trying harder to make sales now. It used to be rare to get a discount like that, for me anyway -- but now I seem to be getting them just for clicking on a listing, not even watchlisting it. It feels weird to get 3 or 4 offers after just browsing (a few years ago I'd be surprised by that many in a month).

Usually the book lots on sale are mixed titles, so I was surprised to see that someone was offering a batch of 10 ATTWN (an appropriate number!). Not only that, but this is one of 6 such lots. Maybe someone is clearing out a book warehouse -- they're new so probably not old school or library stock. The price isn't bad (especially given how much even softcover books are costing now) -- they've offered it for under $46 US including cross-border shipping to where I am in Canada.

Anyway, I figure it's a decent deal for new books, and I'd have to do a special order if I wanted to get this many of the same title -- or hit multiple stores.

By the way -- I think it's a sign of Christie's ongoing popularity, that her books seldom sit out there in the boxes for more than several days. I've been stamping and logging each book, and after putting out more than 120 so far, I've only sighted a half-dozen again (at least in my part of town). The older pocketbooks can fit in, even when the LFLs are full of thicker more recent trade paperbacks by other authors. Given how many Christies are out there (hundreds of millions?) one might expect them to turn up in used bookshops or these boxes more often -- but that's not the case. People must be holding onto their copies.

Dating from the 1880s (several years before Agatha was born) -- if the set was bought new around the time of publication, I guess the original owner would have been Margaret Miller, sister of Mary Ann West. Mary Ann was the mother of Agatha and Madge's mother Clara. It's a bit complicated because Mary Ann was widowed and having difficulties, so Margaret basically adopted her niece Clara and raised her. So she was foster-mom to Clara.
https://agathachristie.fandom.com/wiki/Margaret_Miller

At the same time, Margaret was the second wife of Nathaniel Miller, and stepmom to his son Frederick. When Frederick decided to marry Clara, Margaret became step-grandma to their kids, through Frederick -- while being maternal great-aunt and adoptive grandma through Clara. (Mary Ann West was still in the picture, as "Grannie B", with the B standing for her married name Boehmer.)

Margaret was called "Auntie-Granny" in Agatha's autobiography. Some of Agatha's biographers suggest that she was a major inspiration for Miss Marple.

Someone posted the family tree, showing Margaret's ties to the rest of the extended family.
https://www.reddit.com/r/agathachristie/comments/xjbjtj/it_is_widely_believed_thanks_to_agatha_herself/

(the other relationships don't show up in some of the other family trees online)
https://www.wikitree.com/wiki/Miller-20109

Margaret's signed her name in one of the books. I imagine she gave the books to Madge, who may have taken them up north when she got married. In any case, they eventually ended up with Agatha and were stored at Greenway, as the listing describes.

I suspect that they were auctioned off some time after the property was donated to the National Trust, after Agatha's daughter Rosalind died. People went through all the stuff, kept the personal papers and the most historically-relevant items, and the rest of the things were sold off. (Storage space was limited -- Agatha herself described what a burden it is, to have a bunch of stuff lying around that isn't really important. She had to go through all her family's things at their home in Torquay and clear out rooms.)

So if anyone likes historical books -- in French -- and is interested in things that Christie had at her holiday home ... I've included the "Buy It Now" link.
https://www.ebay.ca/itm/374326010025

I noticed that RFK Jr. has been posting past family photos fairly often, on his social media. (This was from Instagram, a week ago.)

There's a photo with very similar composition in his memoirs (American Values), almost the same angle with the same trees and fence, also showing Atlas but with Ethel riding. Photo credit there is Jacques Lowe so I assume he took this one too.

Bobby Jr. notes that Atlas was his older sister Kathleen's horse -- she'd have been about 16 then. She is currently the eldest of the Kennedys (born July 4, 1951).

https://www.instagram.com/robertfkennedyjr/p/DZdKIG1x_x8/

I came across this analysis a few years ago but was having trouble getting the graphics in legible form. Someone went through Christie's novels and looked at killers, murder methods, motives, etc. There aren't any specific books mentioned, but I'm going to put spoiler flairs up just in case, since even knowing the general patterns might be a giveaway.
I was surprised that the feeling I had, that a lot of her murderers were >!in health care or entertainment!<, only held for some periods in her career. And even then, they weren't the majority.

The author concluded:
>!"In Agatha Christie’s novels, murder and financial fraud are often intertwined. The murderers are more likely to be men, are partial to poison, and frequently commit the crime as part of a scam such as winning an inheritance."!<
(I guess that's why Bloomberg's financial journalists decided to publish it)

Quick summary:
https://indieresearch.net/2020/08/16/perfect-crime/

Original link with all the graphics:
https://www.bloomberg.com/news/features/2020-07-02/who-did-what-in-every-agatha-christie-murder-mystery-novel

See if this works for getting around the wall
https://archive.ph/miy7T

I've noticed several questions posted recently about locating particular Christie editions and found this website which has a selection of covers from first editions until present, for English and some translated titles too. It's not bad -- they've been trying to provide info on the artists, like Tom Adams, but there are some gaps (understandable because many editions don't have artist credit). I noticed that there are some covers they don't have up yet (I'm sure that the Pocket Books silhouettes from the 1980s included more titles), but aside from that they have a LOT of designs.

It's a fun way to pass some time, and find out the publisher and approximate date for ones you might have seen in the past. Or check out other titles for editions when you already own a few of them. Interesting to see how the designs have changed over the decades.

Main website is here, and you can scroll down to click on individual titles for more information.
https://www.deliciousdeath.com

More details here:
https://en.wikipedia.org/wiki/Civil_Rights_Act_of_1964#Passage_in_the_Senate

Besides RFK (correction: his brother Edward) being in there on the Yea side, another name to note:
"The most dramatic moment during the cloture vote came when Senator Clair Engle (D-CA) was wheeled into the chamber. Suffering from terminal brain cancer, unable to speak, he pointed to his left eye, signifying his affirmative "Aye" vote when his name was called. He died seven weeks later."

Earlier that day:
"Senator Robert Byrd ended his filibuster in opposition to the bill on the morning of June 10, 1964, after 14 hours and 13 minutes. Up to then, the measure had occupied the Senate for 60 working days, including six Saturdays. The day before, Humphrey, the bill's manager, concluded that he had the 67 votes required at that time to end the debate and the filibuster. With six wavering senators providing a four-vote victory margin, the final tally stood at 71 to 29. Never before in its entire history had the Senate been able to muster enough votes to defeat a filibuster on a civil rights bill, and only once in the 37 years since 1927 had it agreed to cloture for any measure."

The full headline:
"Every Major Actor to Play Hercule Poirot Before New BBC Reboot, Ranked"
https://www.tvinsider.com/gallery/agatha-christie-hercule-poirot-actors-ranked/#2

I was inspired to write something up, because u/Chemical-Sea-6997 was curious on a thread several months ago, about real people who may have inspired Christie’s characters. 

https://www.reddit.com/r/agathachristie/comments/1p2x2n1/comment/nq6fgu9

It was uncommon for Christie to talk about specific things that appeared in her writing. She didn’t give a lot of interviews, in any case. That seems odd compared to now, when authors are all over radio/TV/social media, touting their books. But I guess writers could get by without book tours and doing a ton of publicity back then — the increasing amount of self-promotion they’re forced to do seems to be a late 20th C thing. (I’ve heard that celebrity author Jacqueline Suzann (Valley of the Dolls etc.) may have started that, after Christie’s time.)

Regarding people Christie actually knew: she mentions a couple of situations in her autobiography, which didn’t come out until after her death. 

Sir Eustace Pedler — The Man in the Brown Suit 

According to Agatha's memoirs, Sir Eustace was based on Ernest Belcher, one of Archie’s friends. He had been a teacher at Archie’s school. Belcher was a couple of decades older than they were, and I wondered if he was independently wealthy — but it looks like his dad worked at the post office. He taught in England and also in South Africa and New Zealand. During WWI he had a government job, and after that he was appointed to work on the British Empire Exhibition. Belcher organized a publicity tour in 1922 that would go to British colonies around the world, to promote the exhibition. He talked Archie into going with him and bringing Agatha. 

https://en.wikipedia.org/wiki/Ernest_Belcher

Pretty soon Agatha realized that Belcher wasn’t the person they thought he was. He was a big talker but terrible at organizing, and he had a habit of yelling at people and trying to shift the blame when things went wrong. She found out that he was prone to exaggeration, and was over-confident in his own abilities. I also wonder about the effectiveness of the whole project, because they completely missed India, a major British colony. And even though the US wasn't part of the Empire, there were lots of British expats living there (Agatha's own father and her brother were born in the States) and it was close enough that it seems like a big omission, not to do some publicity in that market. Especially since they would be touring parts of Canada and heading home via New York anyway. Reading Agatha’s account, the whole thing sounds kind of haphazard.

Agatha was exasperated by Belcher, but ended up following his suggestion that she use his home as a location for one of her books. 

https://agathachristie.fandom.com/wiki/The_Mill_House,_Clewer

https://windsorlocalhistorygroup.org/agatha-christie-at-clewer-mill-house/

She put him in the story, which was eventually named The Man in the Brown Suit, overriding his suggestion of The Mystery of the Mill House. She said in her memoirs that it was “the only time I have tried to put a real person whom I knew well into a book” (p. 321). The “Sir” part was suggested by Archie — that Belcher wouldn’t mind as much about having his flaws described in public, if his character had a title. 

Belcher could be very charming. Agatha mentions that several times. I wonder what was going on with him … where did he get his money? He could afford to live in a fairly large country house, with a couple of servants (admittedly this wasn’t as unusual a century ago — when she was a new mom in the 1920s, Christie had a nanny but couldn’t imagine getting a car). 

Belcher was single when Christie met him, and got married (after the grand tour) to a much younger woman he met on the trip.He strikes me as being a bit of a con artist — a skilled self-promoter who talked himself into various jobs. In her memoirs, Christie notes that he’d send her out to buy stuff for him, but never paid her back.

Morgan’s biography of Christie suggests that he may also have inspired Major Palgrave in A Caribbean Mystery.

Christie’s grandson Mathew commented that Belcher was the only person close to her who ended up becoming a character. Certainly he’s recognizable —but several other characters show at least a few traits, even if they’ve been blended with other people, or altered to suit the plot.

>!Zachariah Osborne!< — The Pale Horse

Christie said he was based on “Mr. P”, >!who really did have a pharmacy in Torquay. He was one of the people who trained Christie for dispensary work in WWI. She describes him as having a “cherubic” appearance, small and rotund with a pink face, but she was wary of him because he sexually harassed her and other female employees. (From Christie’s description, the incidents would have been seen as inappropriate even back then, the sort of thing that “polite company” would have disapproved of, and probably called out or at least interrupted if they saw such behaviour.)!<

>!“His memory remained with me so long that it was still there waiting when I first conceived the idea of writing my book The Pale Horse--and that must have been, I suppose, nearly fifty years later.””!<

>!<

>!Christie goes so far as to say Mr. P was dangerous — not necessarily because of how he acted towards women, but  he was making mistakes with prescriptions. He was so arrogant that he reacted badly to being corrected, especially by someone he saw as inferior. Christie may have felt that he was influential enough to prevent her from being certified as a dispenser. She wasn’t the kind of person to pick a fight in public with a man (unlike her colleague Dorothy L. Sayers who reportedly argued with people at the BBC), but she was more subtle about it. Christie figured out a way to destroy medication that he’d mixed in error, and which might have made a patient very ill — even though it made her look incompetent.!<

I have no idea whether the bit of biographical detail that Christie inserts -- >!that Osborne had wanted to become an actor, but his father discouraged him and thought he should go into the family business instead -- also applies to Mr. P. Or if she heard directors or other actors talking about a person they disliked, maybe while she was working on theatre productions, and decided to remember this for future use. Whichever the case, I thought it was brilliant. Not only does this explain the way the main scheme is devised, but it's so revealing about Osborne's personality. It turns out that it's not a stereotypical "dad crushing son's dreams" situation -- the elder Osborne probably knew what kind of person Zachariah was, and that he didn't have the temperament to be a performer. The other characters in the book note that he was too arrogant to accept guidance or criticism, and he was probably difficult to work with. And Osborne has always resented his rejection, and in his mind he's getting revenge on other theatre people, proving to them that he *can* play a role and convince his audience (or rather, victim) that he's that character. !<

>!A weird little detail — Christie said that Mr. P showed her a solid dark nugget he had in his pocket, which he claimed was curare, a poison derived from plants in South America. (Indigenous people use it on their arrows, to paralyze prey.) Unprompted, he told her that he carried it around because it made him feel “powerful”.!<

I think that she mentioned Mr. P because if he was middle-aged during WWI, he and most of the people (family, friends, and clients) who remembered him would have been dead by the time she wrote her autobiography in the 1960s. I don’t know if his real first or last name started with “P”, but there’s a chance he could be identified now from business records, ads in the local papers, city directories, etc. That would be an interesting project for a historian someday. 

Louise Leidner — Murder in Mesopotamia

Katharine Woolley (an archaeologist Christie worked with), is believed to have inspired Louise. She was a talented and charismatic person, but could also be rather difficult. I’ve wondered whether Woolley noticed any parallels between her and the character. Even if she didn’t, my own experience doing field work suggests that the other people on the dig probably did!

I was interested to find out that Woolley wrote a novel, Adventure Calls, not long after Murder in Mesopotamia came out. It sounds a bit like one of Christie’s “young woman goes on a travel adventure” books. (It’s long out of print, but apparently can be bought on Abebooks as a print-on-demand reprint.)

https://www.penn.museum/sites/expedition/murder-in-mesopotamia/

https://en.wikipedia.org/wiki/Katharine_Woolley

Also — Woolley being a skilled sculptor reminds me of The Hollow — I wonder if some of Henrietta Savernake’s character is based on her?

True crime cases:

Christie often referred to actual situations by name, like Crippen and Lizzie Borden. I think Poirot even mentions having a theory about what happened in the Borden case, though he doesn’t go into it. 

She also had several books that parallel cases which would have been widely known to her readers back then — like the kidnapping/murder mentioned in >!Murder on the Orient Express!< (The Lindbergh case) and what happened to >!Marina Gregg in The Mirror Crack’d !<(Gene Tierney and her daughter Daria). 

>!<

Spoiler for >!a particular Christie play:!<

>!<

Real people who weren’t involved in crime:

Ruth Draper — she was a talented character actor, who impressed Christie with her ability to do impressions. She could appear to be different people without the aid of make-up or special effects.

https://en.wikipedia.org/wiki/Ruth_Draper

This situation appears multiple times in Christie’s work, where someone is a master of disguise and can even fool family and close friends. 

(For example: >!After the Funeral, Lord Edgware Dies, Murder in Mesopotamia, Third Girl, Mystery of the Blue Train, The Secret Adversary, The Big Four — and short stories like The Dead Harlequin)!<

It’s an in-joke among fans that if a character >!is an actor, professional or amateur, you have to suspect them! !<Sometimes it gets pretty farfetched, but Draper (and also Christie’s own sister Madge, who did local theatre productions in her youth) are likely responsible for raising that possibility in Christie’s mind. 

Characters possibly influenced by Christie’s family and friends:

I think Christie mentioned once that she didn’t really like to put people she already knew into her books. Instead, she might notice someone on the train or walking by on a street, and start imagining characteristics that would work in a particular story. This makes sense to me, because when I’m writing, it’s actually harder to bend a story around somebody you know, than to make up things that the plot requires. So she might have just worked in some traits from people she was already familiar with, when she was developing a brand-new character.

The Morgan biography notes that Mrs. Boynton, in Appointment With Death, was inspired by a domineering woman Christie encountered while on a Nile cruise. And when she was visiting the Caribbean, she noticed an elderly man in a wheelchair. So it may not be a coincidence that Miss Marple, also on an island holiday, met Jason Rafiel.

Reading Christie’s memoirs, sometimes she mentions a real person who seems to have some similarities to characters I’ve already read about. Like her brother Monty and his escapades in Africa — I can't help thinking of people from The Sittaford Mystery or And Then There Were None. Anytime there’s a military guy who served overseas, and went a bit feral — doing things that would shock or frighten people back home. The Morgan biography of Christie mentions that her sister Madge also wrote Monty into one of her plays. 

Other Christie characters

The woman who’s socially out of place — she’s from an upper-middle or lower-upper class, then marries a very rich man (or rather, an entrepreneur who becomes very rich). She’s overwhelmed by the different kind of life she’s now leading. Lady Coote, in The Seven Dials Mystery, is living in an enormous mansion with dozens of servants. She’s bewildered and a bit lonely, and misses the times when she and her ambitious entrepreneur husband had a cottage-size place, that she decorated and looked after on her own. The servants know that she’s out of her depth. 

Compare this with Agatha’s sister Madge, who married into the aristocratic Watt family. At one point their estate was short-staffed, and Madge swept and mopped the massive house by herself. 

(I definitely got a similar vibe from the Marie Claire piece by Elon Musk’s first wife Justine, describing how much things changed, after they began as a young couple with housemates. There's a rather revealing video on YouTube, showing 1990s Elon proudly getting an expensive McLaren car delivered, while Justine is standing there looking bemused. He used to commute between LA and the Bay Area in that thing -- I'm imagining it stuck in traffic.)

The kindly European governess or nanny — the governess in Elephants Can Remember reminds me a lot of this woman described in Christie’s memoirs

https://agathachristie.fandom.com/wiki/Marie_Sigé

Nosy older ladies — Miss Marple of course, but when she was a young woman, Christie would often visit her “Auntie Grannie” in Ealing (she’s actually recorded as being there on the weekend when the 1911 census was carried out) and met her elderly cronies. 

https://www.aroundealing.com/history/1849/

https://www.thegenealogist.co.uk/featuredarticles/2012/agatha-christie-queen-of-crime-51/

Worsley’s biography of Christie (p. 69) mentions that the matriarch Mrs. Inglethorp, from The Mysterious Affair at Styles, is a bit like Auntie Grannie and even Christie’s own mother Clara. 

If anyone else has any thoughts about real people who became Christie characters, please feel free to post!