This fonds consists of records encompasing three generations of the Boyd family of Bobcaygeon. The fonds has been divided into the following series: photographs and glass negatives; Reverend Henry C. Avant; Mossom Boyd; Mossom Martin Boyd (Mossie); Lillian de Grassi Boyd; the De Grassi papers which are records of Dr. Alex De Grassi, Lillian Boyd's father, a physician from Lindsay, Upper Canada; Gardiner Cust Boyd; Mildred Boyd; Winnett (Brownie) Boyd; Laurence Chadwick Boyd; Mossom de Grassi Boyd; A. Sheila Boyd; stamps; artifacts; business which deals with the Boyds interests in lumbering; agricultural papers which deal with the Boyd's farming interests in buffalo and cattle; and, estate papers. The strength of this fonds lies in its completeness. Nothing was thrown away and there are grocery lists, laundry lists, staff salary books, furniture receipts, party and wedding invitations, school report cards, ship and railway timetables, diaries and approximately 20,000 pieces of correspondence. This has resulted in a remarkable record of a large household from the 1880s to the 1980s and an invaluable source for social and business historians.

Collection consists of nine Boyd family photograph albums, 14 glass plate negatives, and several strip negatives. The images depict the lives and activities of the Boyd family of Bobcaygeon, Ontario, and include lumbering scenes, Trent Canal steamboats, buffalo/Hereford animals, and travel excursions. Also included are three "Gypsy" photographs (Peterborough, 1909), and photographs of winter sporting activities. Several photographs depict family members; many are unidentified. Also included in this collection are copies of the wills of WT.C. Boyd and Mossom Boyd.

The fonds consists of 25 black and white photographs of scenes, in and around Lindsay, Ontario, which cover such topics as parades and processions, military, industrial, social and family gatherings. The photographs were created by the Trotter family.

Fonds consists of the wills of W.T.C. Boyd and Ida Lillian Boyd, with attached deed of Laurence Chadwick Boyd. Also included are several Boyd family photographs and one portrait. One of the albums has a photograph of Anne Langton, pioneer artist and teacher who settled in the Sturgeon Lake area, and whose journals have been published.