I first learned this tune as the melody for the playground ditty "oh, they don't wear pants on the other side of France. But they do where grass to cover up their ..." Latter encountered it as the C part to "Bonaparte's Retreat" (added by Doc Watson, according to one report) and was told somewhere along the line that it was the tune Sally Rand fan-danced to at the Chicago World's Fair. Does anyone know if the tune goes back any further.