Fonds consists of the following series: Correspondence, 1947-1995; Autobiography manuscripts, 1948-1995; Photographs, 1948-1980; Writing, 1940-1996; Subject files; Newspaper subject files; Newspaper reprints; Newspapers, 1958-1978; Scrapbook of B.C. provincial campaign, 1975; Recording of meeting with Andy Bigg and staff of Cowichan Pictorial regarding joining Union, 1973. The Newspapers include: a complete set of the Western Advocate, 1958-1959, and a complete set of front covers of the Cowichan Pictorial, 1966-1978.

Fonds consists of 4 series: the Frank Sylvester series, ca. 1862-1908; the Cecelia Davies Sylvester series, ca. 1854-1928; Family ephemera series, 1867-1918, and Photographs, ca. 1870-1950. The Frank Sylvester series includes: cannery contracts, legal invoices, lecture manuscripts, and a diary. The Cecelia Davies Sylvester series includes: an autograph book, and scrapbooks containing clippings, photographs and ephemera. The Family ephemera series includes: biographical information, documents, pamphlets and publications. The Photographs series includes: photographs, negatives, and glass plate negatives.