Raymond Albert "Ray" Kroc (October 5, 1902 – January 14, 1984)
Kroc is responsible for turning McDonald’s into the world’s dominant fast-
food chain after joining the company in 1954. Between the end of the First
World war and the early 1950s he tried his hand at a number of trades
including paper cup salesman, pianist, jazz musician, band member and
radio DJ at Oak Park radio station WGES.