Fonds consists of numerous photographs: albumen, carte de visite, and portraits of various Reesor or Fowler family members, though predominantly the subject matter of the photographs is Hilda Reesor. The photographs reflect a range of photographers, from Toronto to Kingston. Also contains a small amount of correspondence and numerous Christmas cards to Hilda Reesor.
Fonds consist of both First and Second Class examination papers for students administered by the County of Lennox & Addington Board of Public Instruction.
Fonds consists of correspondence and a photograph pertaining to the raising, from the Trent River, of iron ore cars, belonging to the Cobourg, Peterborough & Marmora Railway and Mining Company.
The papers consist of correspondence, diaries, writings, memorabilia and photographs. The papers are divided into two series: Correspondence of Anna Walling - prominent correspondents include Charlotte Perkins Gliman, Emma Goldman, and Selig Perlman, and Correspondence of Others - including correspondence of William English Walling, other family members and Leonard Abbott. The correspondence (1897-1964) which includes family, friends and political associates documents Walling's involvement in political causes. The letters also reveal Anna Walling's feelings on personal matters, social questions and her reactions to meetings with prominent persons both in the United States and abroad.
Fonds includes bibliographies and manuscripts of scientific papers and commentaries by the author, with particular emphasis on his speciality which was fluid surges and water-hammer.