Minstrel Days(1941)

This Vitaphone musical featurette features a minstrel show, with traditional interlocutor and Mr. Bones, doing many old time songs (mostly Stephen Foster) with Al Jolson and Eddie Cantor in blackface, via stock footage from earlier Warners films, inserted doing some of their trademark songs. This short was reissued November of 1946 and again in September of 1953.