I've just recently rediscovered copies of the Christine Noble Goban children series from the 30's (Narcissus and de Chillun, Judy and Chris, and Those Plummer Children. Excellent reminiscences of Franklin, TN in the early 20th C. Read them as a kid and remembered Doctor Dan, (pg. 159 in Narcissus and de Chillun) singing:

"'Old folks, young folks, everybody come,
Join the darkies' Sunday School and make yourselves at home.
Kindly check your chewin' gum and razors at the door,
And we'll tell you Bible stories that you never heard before.

'Oh, The Lord made the Devil and the Devil made sin;
The Lord made cubby hole to put the Devil in.
The Devil---'

'What the Devil did is destined to remain a mystery, for at that moment the door went to with a bang"-- etc.

So I've wondered all my life about the rest of the song. Still want to know the tune. It was great finding all this info.