The tune for "Buffalo Gals" was related to the old Virginia tune "Midnight Serenade" (which has already been mentioned). Years ago I read that M.S., in turn, was related to an English song, "D'Ye Ken John Peel," but I can't find that reference now. The words for "John Peel" were written by John Woodcock Graves. I read in Wikipedia (my "source," ha) that JWG set it to a Scottish folk tune called "Bonnie Annie." But years ago I read somewhere that JWG said he'd set "John Peel" to a lullaby he had heard an old Scottish granny sing, something to the effect of "Go to Sleep, Annie." Of course it's possible that the granny was singing "Bonnie Annie" as a lullaby, but I would really like to know if there was another song that was a lullaby. I will say that the Scottish folk lullaby "Coulter's Candy" has a similar structure. ... I'm very interested in what the commenter said about "Bell Tune" from Lancashire. I can't find that anywhere either.