In August 1942 Marvin left school to enlist in the United States Marine Corps, serving with the 4th Marine Division in the Pacific Theater. He was wounded in action during the World War II Battle of Saipan, in the assault on Mount Tapochau, during which most of his unit ("I" Company, 24th Marines, 4th Marine Division) were killed. His injury was from machine gun fire, which severed his sciatic nerve. Marvin was awarded the Purple Heart and was given a medical discharge with the rank of Private First Class in 1945 at Philadelphia. Marvin's awards were the Purple Heart, the Presidential Unit Citation, the Asiatic-Pacific Campaign Medal and the World War II Victory Medal.
Mr. Marvin, rest in peace, and thank you for your service.