A: None of the actresses who did the voices of the elephants in Dumbo had also voiced Minnie Mouse. The uncredited actresses were Verna Felton, Noreen Gammill, Dorothy Scott, and Sarah Selby. Felton played the elephant known as Matriarch, Gammill was Fidgity, Scott was Giddy, and Selby was Prissy… and good luck to anyone who knows which elephant is which.