Fonds consists of correspondence, diaries, annuals, a scrapbook, legal records, newspaper clippings, a collection of certificates, and photographs. These records pertain to activities in which the members of the Allison family engaged in both in New Westminster and other locations. Fonds is composed of the following series: Military Records, Professional/Civic Records, Scholastic Records, Legal Records, Matheson Mansion Records, Athletic Records, Family Records, and Fraternal Organizations Records.

The fonds consists of photographs depicting the Cawston family, scenes of Hedley, and residents of Hedley and area (Similkameen Valley). Fonds includes a collection of photographs of Bill Miner accumulated by Vera Cawston.

The collection consists of sound recordings of interviews with pioneers and long-time residents of Princeton and area.