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

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.