Krin Gabbard at SUNY Stony Brook asked when blackface "ceased to be ... a sign
of old-fashioned entertainment" and suggested that the 1951 Doris Day vehicle
_I'll See You in My Dreams_ from (1951) was the last such instance.
 
However, the "Minstrel Show" and "Mandy" number in 1954's _White (!!) Christmas_
postdates that.
 
Priscilla Barlow         [log in to unmask]   "Beauty like hers is
 genius."
English Department
University of Chicago