Needle in a haystack found?
I’m posting this as somewhat of a sanity check.
Family lineage:
Great great grandfather, born in 1863, lived in Edelfingen.
Great grandfather, born in 1896 in Edelfingen.
Great great grandfather immigrates to the US in 1902 with his wife and five children, they receive American citizenship in 1912, when my great grandfather was still a child.
Grandmother, married to an American, born in 1925 in NYC, lived in NY Metropolitan area her whole life.
Father, married to an American, born in 1960 in NYC, has always lived in NY Metropolitan area.
Me, born in 2000 in America, have always lived in NY state.
Everyone in this chain was born in wedlock.
From my understanding, because my great great grandfather came to the US in 1902, the 10 year rule would have came into effect and my great grandfather would have lost citizenship in 1912, however, a researcher I hired may have just found the needle in the haystack. He was able to find a ship manifest from 1908 of my great great grandfather and his youngest daughter coming from Hamburg to NYC. The ages line up perfectly and they’re both from Edelfingen. Would this be sufficient to close the gap and mean that I’m a German citizen?