Who is this person?

[RJNorton]

Yes, Thomas Turnham is correct. According to my source he had served under Lafayette at Brandywine (where he was wounded) and also fought at Yorktown.

Donna, I think the historical marker is correct. In an interview with Herndon, Dave Turnham said the family came to Indiana in 1819. Most books, including Louis A. Warren's, put the horse kicking incident in 1818. Writing of himself, Lincoln wrote, "In his tenth year he was kicked by a horse, and apparantly (sic) killed for a time." That would also put it in 1818.