Lynn:

Camptown Races--1850 Gentle Annie--1856 Come Where My Love Lies Dreaming--1860 Old Folks at Home (Swanee River)--1851

A great resource for this sort of search can be the Levy Sheet Music Collection, at:

http://levysheetmusic.mse.jhu.edu/index.html

NOTE--The Levy Collection is best for the really old songs.