Student Activities bulletins and supplements 1949-1951; opening week activities 1955; Dining-In Ceremony - short history; 1967 program, 1969 program; Report of Higher Institutions of Learning 1935-1937; Presentation of flag (1954 or 1955); Pamphlets about Preparatory School, including course listings 1924-1930; Faculty- Sloat, Chester - Headmaster of Preparatory School, obituary and short life history; Pennsylvania Military Preparatory School diploma, undated.
William S. Frankling papers (Headmaster of Preparatory School)
Cadet Life Viewbook, 1920-21.
Preparatory School History, 1821.
Graduation programs from 1936, 1937, 1938, 1939, 1940, 1941 and 1942 commencement.