The series consists of administrative records including minutes relating to the Coquitlam Heritage Society as well as minutes, reports, and correspondence relating to the development and renovations of Mackin House and Heritage Square. The series also includes plans for the restoration of Mackin House from 1993.

The collection consists of material accumulated by the Coquitlam Heritage Society over the course of its existence. The collection includes the following: records related to Fraser Mills (later the Canadian Western Lumber Company, then Crown Zellerbach) including ledger books, journals, statements, photographs, and various other records; records related to the lumber industry in Coquitlam; photographs of historic Coquitlam; glass plate negatives by W.J. Moore and Richard Broadridge; material related to the administration of the Coquitlam Heritage Society itself; and miscellaneous records related to Coquitlam's history

The item consists of a photocopy of a photograph depicting Coquitlam High School class of 1945 as well as an attached list of those in the photograph.

The file consists of historical photographs of Coquitlam (and one of Port Coquitlam) that were shot as large format halftone negatives that were prepared for publication, though it is unknown for what purpose.

This file consists of a newspaper clipping of the cover of Coquitlam Now.

The collection consists of records pertaining to the Coquitlam Satellites Women's Hockey Team from 1975 to 1982. The collection includes: two scrapbooks containing newsclippings, ribbons, and patches; programs for tournaments; programs and manuals from the BC Winter Games in 1981 and 1982; tournament medals; and commemorative pins.

The fonds consists of Board of Directors annual reports from 1998 to 2006 (note that 2002 is missing) as well as one scrapbook containing photographs, programs, and news clippings related to club members taken and collected between 1963 and 1980.

The file consists of a variety of photographic material that was likely used in the preparation of a publication, though the specific publication is unknown. Some of the prints are taken from the large format negatives in File 1 of this collection. Predominantly, the negatives depict houses in the Coquitlam area, but there are also some negatives and prints of historical photographs of early Coquitlam.

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 series consists of records relating to School Board Trustee elections and public meetings. The series also includes some information about the "Keen Kids" program.

The file consists of photographs taken by Craig Hodge of the Coquitlam Water Tower being dismantled. The photographs were taken for the Columbian Newspaper in 1979.

The file consists of a thank you note from the co-director of the Olympics of the Mind Tournament.

The series consists of council minutes from the first Council meeting of the Corporation of the District of Fraser Mills, held on April 21st, 1913, through to the final Council meeting held on October 18th, 1971. It was noted that the next Council meeting would take place on October 21st, 1971, but there are no minutes of this meeting. The Corporation of the District of Fraser Mills officially amalgamated with the District of Coquitlam on November 1st, 1971.