The collection consists of primarily textual materials relating to the Church Union movement and the organizations involved, including the Provincial Church Union Committee (1921-1925), the Joint Committee on Church Union (1903-1924), and the Committee Pursuant to the United Church of Canada Act (1926-1928). There appears to be a mix of original documents and various published and copied items.

Contents include: minutes, correspondence and publications created by and relating to the Saskatchewan Provincial Church Union Committee (1921-1925); Basis of Union documents from the Presbyterian Church (1905-1908) and Methodist Church (1909); records of proceedings, minutes, and publications by and relating to the Joint Committee on Church Union and its Subcommittees; documents relating to proposed legislation (1922-1924), the Act Incorporating the United Church of Canada, House of Commons debates on the topic, and associated Saskatchewan legislation (1924); publications and articles relating to the anti-union movement and the legal issues resulting from the division of the Presbyterian Church; copies of information regarding the voting returns on Union from across Canada (1925-1926); maps showing communities with local union churches; and a poster published by the Union Committee of the Presbyterian Church (1924). There are also materials regarding the Commission Pursuant the United Church of Canada Act, including orders, proceedings, and materials relating to non-concurring Presbyterian congregations in Saskatchewan.