Fonds pertains to the life of Theodore Thorne Hamilton (1890-1959) and his extended family. The documents, comprised of original letters, vital statistic certificates, photographs, and postcards, are interleaved with detailed biographical information compiled by the donor, Mr. Jim Hamilton, a second cousin (twice removed) of Theodore Thorne Hamilton. Included are approximately 100 photographs pertaining to the Skeena River flood of 1936, approximately 30 early 20th-century Bobcaygeon area postcards, and two Bibles.

This fonds consists of records, photographs and slides of Windy Pine, private cottage and cabins owned by Dr. Mary Northway and Flora Morrison. They ran girls canoe trips at the camp during the 1940s.