Administrative records consist of general and committee minutes, 1902-1972, annual reports, 1902-1964, personnel files, 1937-1947, files of correspondence and memoranda on individual sites as well as themes, e.g. water pollution, 1906-1972; and various surveys and studies, 1912-1967.

Series consists of minute books from annual and general meetings, and various committee meetings from both the Parks and Playground Association and Community Garden League of Greater Montreal.

This series contains manuscripts and published works written by Ramsay Traquair over the course of his career.

This series contains correspondence created over the course of Traquair's career. Includes circulars, telegraphs, and other messages related to Traquair's professional activities.

The series consists of records created in the fulfilment of the Zoological Society’s mandate and goals to host events, trips, speakers, and to donate to and support worthy causes. This includes event and project planning records with related financial documents and reports, guest lists, communications to members, and correspondence. A large part of this series is concerned with the Society’s whale watching excursions and their whale conservation efforts. These files include an annual pamphlet called Whales Alive! = les Baleines!, flyers, newspaper advertisements and published articles, all promoting whale watching field trips. Others include donations, correspondence, and financial documents relating to issues surrounding conservation. Other types of activities covered in this series are field trips (primarily around Quebec but also a few internationally), film screenings (known as theatre nights), art shows, fundraisers and lectures. The field trips and some events of the Society are documented in 5193 photographs stored in 24 photo albums (1989-2009). Apart from events, projects undertaken by the Society are included, such as their efforts to build a wildlife park in Montreal’s West Island, the conservation of owls, lynxes, birds, turtles and flowers, and their wildlife pavilion at Man and His World.
There are large gaps in the Activities series. The Society’s founding project, the Montreal Aquarium and Dolphin Arena, and their proposal for an ark at Expo ’67 are only included briefly in these records. For more information on these projects, see the Administration series files MSG1164.c5.f11, f12, f13. Also, there are few photos documenting the Society’s activities before 1989.

Second only to Projects and Task Forces in number of files, the Reports, Studies, Briefs and Surveys Series has the oldest document in M.G. 2076, the J.H.T. Falk inspired Social and Financial Survey of Protestant and Non-Sectarian Social Agencies of 1919 (file 11). Though after the mid-1960s Projects and Task Forces tended to appropriate records which previously would have gone to Reports, Studies, Briefs And Surveys, the latter series nonetheless remains a prime indicator of social welfare problems, policies and resources for most of the Council's history. With input from internal (especially committee and section) sources and external contributors alike, it features studies and reports by and, about particular MCSA agencies as well as the institution collectively, besides those addressing numerous other welfare issues. Content ranges from mundane questions of infrastructure - administrative organization and function, or Red Feather fundraising and personnel practices, for instance -- to Executive Director J.W. Frei's scholarly, theoretical paper on Research in Socio-Cultural Development (file 289).

Briefs to the federal and provincial governments are an important element of this series. Among the noteworthy are those to the 1968 Royal Commission on the Status of Women (file 861) and the 1964 Special Senate Committee on Aging (file 954), as well as that on Social Policy for Quebec (the 1967 Castonguay Commission, file 5). The two latter submissions indeed come complete with drafts and working papers (files 428, 560 and 936 respectively). Draft documents similarly figure with finished ones in the welfare planning study of Greater Montreal's English-speaking Protestant community conducted by the National Study Service of New York for the MCSA, and in J.W. Frei's response (files 986-988 and 166). While much of the material in this series relates to meeting physical and psychological needs in conventional social agency terms readily intelligible across Canada, a few items also deal with concerns like Quebec's constitutional position, and bilingualism and biculturalism, which have a special relevance for Montreal.