Masterman, J.C. (John Cecil), 1891-1977

Ruhleben civilian concentration camp was established after outbreak of WWI on site of racetrack outside Berlin and was in operation until Armistice Day. Largest number of civilians interned at its peak was 4,500. Included other nationalities but the majority were British. Internees established their own camp organization, mail service, sports clubs, cultural, educational programs, hygienic measures.

From the description of Sir John Masterman collection of Ruhleben British Civilian internment camp documents 1914-1919 (Harvard Law School Library). WorldCat record id: 655287713