Walter Muramoto (b. 1915) was an amateur photo enthusiast who became an unofficial camp photographer at Rohwer concentration camp in Arkansas. He was asked by many people to photograph events and groups in camp. Muramoto was born in California and lived in Redondo Beach prior to the mass exclusion. He was incarcerated in Rohwer from September 30, 1942 to September 7, 1945. He relocated to Lodi, California immediately after the war.