Fonds is arranged into three series: Administrative and operational records; Newspaper clippings; Photographs and audio/visual.

The fonds consists of correspondence (1920), financial records, a membership application, by-laws (1917), pamphlets (1921) and insurance records.

The fonds consists of the cashbook (1907-1910) of the Canadian Pacific Lumber Company.

The fonds consists of City bylaws (1913-1957), letterbooks and correspondence (1913-1955), assessment rolls (1913-1974), legal agreements, financial ledger (1955-1958), and other operational records (including legal notices) of the City Clerk's office. Fonds includes the minutes of the Town Planning Commission and the Advisory Planning Committee (1948-1958) and records of the War Savings Committee.

The fonds consists of Columbian Newspaper clippings and B&W photographs arranged by subject and by person. The files were created by Columbian staff members and accessed to provide information about a given person or subject.

The collection consists of approx. 640 photographic prints used for the "Coquitlam 100 Years: Reflections of the Past" publication produced by the District of Coquitlam in 1991. The collection also includes the transcripts of interviews used in the publication as well as the administrative files of the Pioneer Tales of Coquitlam Committee and various publications and pamphlets used for contextual information for the book.

The fonds consists of the operational records of the Coquitlam Teacher Librarians' Association from 1964 to 2017. The records include the constitution, meeting minutes, grant and funding information, award information, statistics, contacts lists, and records relating to annual conferences.

The fonds consists of black and white photographs, some black and white negatives, and the occasional colour photograph taken by photographers working for the Enterprise Newspaper. Notations on the backs of the photographs indicate that they were used to plan the publication of the newspaper, and some have cropping written directly on the photograph. Most of the photographs depict residents of Coquitlam.

The fonds consists of photographs taken for the various Black Press publications in the Lower Mainland, including the Tri-City News. It also includes microfilm reels containing copies of the newspaper from 1985-1986 as well as several special editions in print form. The collection also includes bound volumes of the Tri-City News covering the years 1990 until 2000.

The fonds consists of Clarke's diary (1884-1886), his real estate ledger (1879) recording sales of land in Port Moody, and correspondence and legal documents relating to Clarke's real estate business activities.

The fonds consists of minutes (1947-1983), correspondence (1947-1983), membership lists (1947-1983) and a scrapbook.

The fonds consists of minutes (1949-1979), correspondence (1959-1979), annual reports (1949-1994), financial records (1977-1981), and constitution (1979).

The fonds consists of the Police Department diaries kept by the Chief Constable from 1913 to 1938.

The fonds consists of minutes (1936-1954, 1960-1967), cashbook (1942-1951), constitution (1947), correspondence (1945-1953, 1962-1968), membership and executive files, and reference files.

The fonds consists of the record book of the Port Moody Canoe Club (1965-1970) recording training schedules of its members.

The fonds consists of correspondence, memos, and pamphlets relating to Port Moody's celebrations of British Columbia's centennial in 1971.

The fonds consists of the cash journal (1923-1941) of the Port Moody Cooperative Association.

The fonds consists of minutes (1925-1937), accounts (1931-1936), annual reports, correspondence, receipts, and Guides and Brownies certificates of the Port Moody Girl Guides Association, including record and attendance books for the Port Moody Brownies (1935-1937).

The fonds consists of financial records (1969-1981), correspondence (1974-1979), minutes (1978-1983), and records relating to the Museum Restoration Project (1980-1983).

The fonds consists of the minutes and correspondence (1912-1913) of the Port Moody Incorporation Committee.

The fonds consists of correspondence and financial records documenting the planning of the Jubilee. Also included are pamphlets advertising the celebration.

The collection consists of taped interviews with people giving their earliest recollections of times and events in Port Moody and area.

The collection consists of maps and plans of the Port Moody and Coquitlam areas, including railroad maps and plans and townsite and subdivision maps.

The collection consists of photographs depicting people, events, industry (including sawmills and oil refineries), and the built and natural environment of Port Moody, Coquitlam, Ioco, and surrounding area. Many of the photographs in the collection were originally collected by the Coquitlam Historical Society, which disbanded ca. 1971.

The series consists of copies of the Tri-City News from 1990 to 2018 printed and bound in large volumes, arranged by month and year. The series also includes microfilmed copies of the Tri-City News from 1985 and 1986, as well as microfilmed copies of the Maple Ridge News (1985-1986) and the Sunday News (1985). Finally, the series includes several loose special editions in print form.