This addition to the fonds consists of articles and booklets written by Frank Morris; manuscripts and published articles by Douglas Sadler; correspondence, minutes of meetings relating to Sadler's involvment in environmental and naturalist issues and activities; correspondence relating to Teacher's College and several issues of the Young Naturalist.

This addition to the fonds consists of 10 letters (some fragments) written by Frances Stewart to her granddaughter and relatives in England, concerning her pioneer life in the Peterborough area. There is also one photograph of Harriet as young child which was photographed in London, England (biographical information is written on the back of the photograph).

Fonds consists of correspondence, manuscripts, published papers and booklets, and research materials relating to the many papers, articles, and books written by Jean Murray Cole

Fonds consists of papers, articles, and manuscripts of books written by Robert Bowley. Included is research material, photographs, slides, and negatives relating to the postal history of Smith Township, Peterborough, and the surrounding area. Included also are letters dated 1823-1878 of the Baptie family who were situated in Ida, Ontario, and extensive research material related to Captain Charles Rubidge, Sir Sandford Fleming, the Pengelley/Roche families, S.J. Carver, and local historic sites. This fonds is a tremendous resource for information related to Peterborough and area in general.