This fonds consists mainly of records assembled by McPherson over the course of his professional career. Material documenting McPhersons wartime activities predominates. The fonds contains two sous-fonds. One of these includes a scrapbook and from McPhersons father, Ewan. The other contains research, correspondence and interviews conducted by Kay Alsop in the mid 1990s. Alsop, a prominent Vancouver journalist, intended to write a biography of McPherson but was never able to find a publisher for the book. Alsop therefore decided to donate some of her research files as part of the McPherson fonds. The Alsop Sous-Fonds contains important records which McPherson had given to her, particularly those documenting the decision to intern Japanese-Canadians.