OK everyone makes mistakes. But this one drives me crazy! Mad Magazine does parodies of Disney calling him Walt Dinsey. The misspelling of Walt Disney's name as Disney goes way back. The first instance I could find by doing research was in the 1924 Exhibiter's Trade Review. This goes back to 1924.
Take a look:
The next instance was the Kentucky Kernel in 1932
And Finally here is a Walt Dinsey's Hansel and Gretel Published by Mad Magazine.
