I have nothing that can confirm there's a connection between your Samuel Denton and the Samuel Denton I found in the 1860 Census. I did find what may have been his father, Samuel Denton, in the 1850 Census. The Census was for the same county, Wapello, Iowa, as the 1850 Census. The earlier Samuel Denton was born about 1812 in Iowa. His wife's name was Dicy. Children listed were Nancy, Martha E., Sara A., Levi, Jackson and Amanda A. I mentioned earlier that the Samuel Denton is the 1850 Census was at the same residence as Elizabeth Fenner, presumbably my great grandmother. She and her husband, John D. Fenner, did end up in Adair County, MO. John D. and Elizabeth are listed in the 1870 Census for Kirksville, Adai, MO. If I find anything more about Samuel Denton from the 1860 Census, I'll let you know.