I have found Henry Fronk, age 76, (my GGGGgrandfather living with my GGGgrandparents (Charles Hugh Knox and Harriet Fronk Knox) in Bureau County, Illinois in the 1860 Federal Census. Harriet was Henry Fronk's daughter. I don't know if Henry Fronk died in Illinois but Charles and Harriet moved to Allen County, Kansas where they lived next door to my great-grandparents, Samuel Austin Knox and Laura Bell Miller Knox. They were still there in 1880 except that Samuel died in 1879 (he fell off a wagon). Laura Bell Miller Knox died of pneumonia in about 1873, leaving my grandmother, Lula Myrtle Knox an orphan at age six.
I am very interested in the Buchanan family tree if you have it, at least going back to the Revolutionary War period.