The fonds documents the mission, structure, administration, programs, activities, facilities, and evolution of the Quebec YMCA (as of 2009, Le Y du Québec) from its founding in 1854 to the late 20th century.

The records include founding documents, annual reports, committee minutes, financial statements and other financial records, employee files, files on buildings and facilities, and administrative files and correspondence relating to programs such as summer camps and courses.

The fonds also includes architectural drawings, scrapbooks of press clippings, brochures, and other promotional materials, photographs of Quebec YMCA events and activities from the late 19th century until the late 20th century, and objects such as flags, signs, plaques, pins and medals.

The fonds is organized in the following series:

P0202/1 Founding Documents, Constitution, By-Laws, Histories
P0202/2 Reports and Minutes
P0202/3 Financial Administration
P0202/4 Human Resources Administration
P0202/5 Branches, Buildings, Facilities
P0202/6 Programs
P0202/7 External Relations
P0202/8 Photographs

The Quinn collection was gathered by Herbert Furlong Quinn between the 1930s and 1970s to support his research of political sciences.
The collection mainly presents a dozen Canadian political parties as well as several foreign parties using brochures and political newspapers covering the period from the 1930s to the early 1980s. The Canadian political parties represented are the Parti libéral du Québec, the Liberal Party of Canada, the New Democratic Party, the Progressive Labor Union, the Commonwealth Co-operative Federation, the Progressive Conservative Party, the Confederation of Catholic Workers in Canada, the National Union, the Social Credit Party of Canada, the Bloc Populaire, the Canadian Student Assembly, among others. The foreign parties covered by the collection are mainly the German Christlich Demokratische Union (CDU / CSU), but also the Socialist Workers' Party of America and the League for Industrial Democracy as well as the Republicans and Democrats during the American presidential campaign of 1964. In addition, the collection includes several years of the "Bulletin" (English version), published by the government of the Federal Republic of Germany, as well as brochures of the Portuguese government of the 1930s.
The collection also includes complementary material: First, there are articles and publications written by Herbert F. Quinn on multiple political subjects, including a manuscript of the book "L'Union nationale: le nationalisme québécois de Duplessis à Lévesque", published in 1979. Second, there is a selection of Canadian newspapers and clippings, covering the 1949 Canadian federal election campaign on the one hand, and the fascist movement around the world during the 1930s on the other.
Finally, the collection includes court transcripts relating to the occupation of the Sir George Williams University Computer Center in 1969, known as the Sir George Williams Affair.

The Quinn collection contains pamphlets, brochures, statements, newsletters, addresses, policy statements, transcripts, manifests, newspapers and newspaper clippings. An index of brochures is available.

The collection is organized in the following series:

C001/A Political Pamphlet Collection
C001/B Politics in the Media
C001/C Publications by Herbert F. Quinn
C001/D Sir George Williams Affair

The collection contains the manuscript titled "The Dark History of Montreal for 130 Years" by Reverend John Douglas Borthwick. the manuscript, dated 1897, appears to cover some of the same topics that are found in his book "History of Montreal, including the streets of Montreal" (1897).

The fonds consists primarily of slides on liturgical art in Quebec. It includes slides on the production of films and books on art.

The fonds consists mainly of correspondence received by Sir William Hales Hingston and a few letters received by Mrs. Hingston and their sons William, Donald, and Harold.

There are also photographs, press clippings, brochures, invitations, manuscripts of Sir William's writings, business cards, maps and objects. The fonds includes a scrapbook of press clippings relating to Sir William Hingston's political and professional life, an official document appointing him to the Ottawa Improvement Commission in 1902, the original letters patent related to Sir William's knighthood, and a circa 1889 photograph of Sir William. Also included is an album containing 92 wedding and travel photographs of the Hingston family.

The fonds is organized into the following series:

P0134/A Sir William Hales Hingston
P0134/B Family correspondence
P0134/C Family history