Possibly as a prototype for Mammy, the African-American housemaid's feet appear at the door to the kitchen, greeted by the three kittens, Fluffy, Muffy & Tuffy. The kittens run rampant around the house, causing havoc as they go. The house's pianola plays a variant of "Kitten On The Keys", caused by Tuffy, and when the pianola finishes its song, the kittens leave it and are caught by the housekeeper. As she prepares to throw them out, she is stopped by a little girl, who decides to adopt the kittens.
The Housemaid also appears in the film's sequel. She looks over Toliver the St. Bernard, and Fluffy, Muffy & Tuffy, whom she must care for, even though her last appearance had her kicking them out.
Pluto is banished to the doghouse by the maid, this time showing her body, for trying to raid the pantry of ham.
Tom & Jerry
William Hanna and Joseph Barbera, also created a black housemaid with the same name, design, and voice as the Disney version for Tom & Jerry cartoons at MGM. Although they are the same in character, the only differences are she is more musophobic (fear of mice), having her rely on her pet cat Tom to catch Jerry.
For the modern Warner Bros incarnation of the character, check here: https://warner-bros-characters.fandom.com/wiki/Aunt_Two-Shoes