See this note and the one that follows it for more on "Round the Corner Sally":

thread.cfm?threadid=126347&messages=488#2874274

I think that it is unclear which way the influences went on this song. It could just as easily have gone from chanty to blackface minstrel. Emmett wrote his song "Ole Aunt Sally", which contains the single line in the chorus about "round the corner, Sally", in 1843, and we have at least one earlier reference to the chanty (1839) that assumes that it has been out there for a while (Reynolds).