Hi Mary, My Thorn Family started out in Illinois in 1850 in Trivola, Peoria Co, IL 30 miles East of Where my Wallis & Gilletts were. I find that funny. So the only Thorns that I have are Sanford Thorn & Abigail Barber of Peoria Co, IL and their children. They did not have daughters or son in laws that you name. Sanford & Abigail moved to Warren Co, Iowa about 1855, so really only had 2 kids in Illinois. That narrows the window of opportunity down quite a bit.