Conversation so far:
Where was Mel Brooks born?
Mel Brooks was born Melvin Kaminsky on June 28, 1926, in Brooklyn, New York.
Did Mel Brooks go to school in Brooklyn, New York?
Mel Brooks attended Abraham Lincoln High School for a year in Brooklyn, New York.
Did Mel Brooks do any activities or join any clubs in his early life?
Who were Mel Brooks' parents?
Mel Brooks' parents are Max and Kate Kaminsky.

Question: What did they do?
Self-contained rewrite: What did Mel Brooks' parents Max and Kate Kaminsky do?