Marvin Camras was an electrical engineer and inventor who was widely influential in the field of magnetic recording.
Camras built his first recording device, a wire recorder, in the 1930s for a cousin who was an aspiring opera singer named Willy. Wikipedia
Born: January 1, 1916, Chicago, IL
Died: June 23, 1995 (age 79 years), Evanston, IL
Children: Robert A. Camras, Carl B. Camras, Louis E. of Camras, and Michael D. Camras, and Ruth Camras Pikler