Collection consists of bound and unbound maps of Victoria and Esquimalt, a Victoria directory from 1860, a document showing polling divisions in Esquimalt (1925), and photographs of Wolfenden family members and B. C. Land and Investment Agency.

Fonds consists of material collected or created by Minaker while researching history of the Gorge for his books. The fonds includes research notes, reproductions of photographs, and draft manuscripts.