Part of a set of American tunes arranged as a quadrille. My gut feeling about this is that he wrote the key signature wrong and that it should have a C# in it as well. I've left it as written, though.
The Boatman Dance was a hugely popular minstrel show song, credited to Dan Emmett, 1843. It has never
completely disappeared out of the fiddle/banjo repertoire since then. It is presented here as a four part tune.
The first three parts match the usual lyrics of the song. (There are several more verses)