Harry Snyder

Harry Snyder (September 9, 1913 – December 14, 1976) was an American businessman. He founded In-N-Out Burger along with his wife Esther Snyder. Snyder was one of the first people to develop the idea of a drive-through hamburger restaurant, where customers could order their food via an intercom.
His wife and he opened the first In-Out-Burger on October 22, 1948, in the Los Angeles suburb of Baldwin Park, California. In-N-Out is described as California's first drive-through. By the mid-1950s, the chain had expanded to six stores in the Los Angeles area. By the time of Snyder's death in 1976 from lung cancer, the company had expanded to 18 stores.