Recording sound for a cartoon train wreck

Rare footage of Walt Disney voicing Mickey Mouse in 1940. November 1st 1940, Walt Disney released the short film "Mr. Mouse Takes A Trip

How are the sound effects of the Tom and Jerry cartoon made?

This animation from Disney's ‘Flowers and Trees’ won the first Oscar for a cartoon in 1932, also the first to use 3 reel filming. Every single movement was done by hand.

Cartoons used to be great.