Mere [Merce] Cunningham Dance Company, July 1952 - April 1970, 1952-1970 Box 401 Unit ID: 198 Date: July 1952 - April 1970, 1952/1970
Metropolitan Security Services, November 1970 - November 1972, 1970-1972 Box 395 Unit ID: 123 Date: November 1970 - November 1972, 1970/1972