Charles T. Munger, Much More Than Warren Buffett’s No. 2, Dies at 99 – The New York Times:

Charles Thomas Munger was born in Omaha on Jan. 1. 1924, the son of Alfred Case Munger, a lawyer, and Florence (Russell) Munger. As a boy he worked Saturdays in a grocery store then owned by Mr. Buffett’s grandfather. (Mr. Buffett worked there for a time himself, but the two did not meet until much later.) At 17, Charles went to the University of Michigan to major in mathematics, but in his sophomore year, after the attack on Pearl Harbor, he enlisted in the Army Air Corps.