Collection consists of greeting cards, humorous postcards, and postcards portraying places in Canada, U.S.A., and the U.K. Some of the humorous postcards depict social concerns of the time, such as the women's suffragette movement and WWI. Several of the cards were posted to people in Yorkshire, England and in Markham and Milliken, Ontario.

The fonds consists of concert and theatre programs from Millbrook, Ontario; World War I materials including prisoner-of-war post cards, and photographs; and theatre programs, menus and other material relating to entertainments which allied prisoners in German war camps devised for their own amusement and which were collected by Lieutenant W.E. Massey-Cooke.

This addition to the fonds consists of newspaper clippings, correspondence, photographs, music books, notes and memorabilia concerning various parts of Peterborough County.