u/Dismal_Success_9943

There's an old chair that has been passed down for generations in my family. I remember once seeing an old photo of a man in the chair. When I asked, my mom, aunt and great aunt all told me the man was President Grant and that he was a cousin in our family.

I'm not sure where the chair and photo wound up after my aunt's passing, so I can't post here as a reference. However, they told me the photograph was taken in Illinois post presidency.

What genealogy site would you suggest I use to start my research to prove/disprove.