Collection consists of material relating to William Lyon Mackenzie King from the estates of his brother Dougall Macdougall “Max” King and of his nephew (Dougall’s son) Arthur Macdougall King. Its major component is correspondence from Mackenzie King to Arthur King and also to Arthur’s wife Kathleen, over a period of twenty-seven years from 1923 to 1950.The first letter is dated 1923, a scant three years after the death of Max King, when Arthur and his twin brother Lyon were 10 years old and the last in the series is dated July 5, 1950. The collection also contains documents and ephemera relating to King’s death, funeral and will, received by Arthur King as a participant in those events; also present are issues of major Ontario newspapers that covered Mackenzie King's death and funeral as events unfolded day-by-day. A small selection of photographs, some formal and some snapshots, are also present. A selection of books retained by the family, among them works written and presented by John King and Dougall Macdougall King, also works owned by Mackenzie King as a boy, present a tangible reminder of the intellectual legacy of the King family.

One photograph mounted on cardboard of the Municipal Council of the town of Berlin, dated 1909. The black and white photograph shows 15 adults dressed in suits and posed seated or standing in front of an ornately painted backdrop.

• Back row, from left to right is Edwin Whyte Clement, F. W. Sheppard, Joseph Roman Winterhalt, and Frederich “Frederick” Bornhold.
• Middle row from left to right is Charles Boehmer Dunke, William Daum Euler, William Robert Wilkinson, Alexander Hugh Millar, H. Martin, and John R. Schilling.
• Front row from left to right is reeve David Gross Jr. (George “David" Gross), third deputy reeve Henry Anthony Dietrich, Mayor Charles Casper Hahn who served from 1909 to 1910, second deputy reeve John F. McKay, and first deputy reeve Nicholas Asmussen.

Among the subjects are three individuals who would later serve as mayor of Berlin or Kitchener following its 1916 name change: William Daum Euler (1914-1917), David Gross Jr. (1917-1919), and Nicholas Asmussen (1925 -1926). William Daum Euler was also elected to the House of Commons of Canada (1917) and Nicholas Asmussen to the Legislative Assembly of Ontario (1919-1926). Both represented Waterloo North, Ontario in their Federal political office.

Consists of Marion Conroy's copies of material given to delegates at the National Conference of Regional Chairmen, Consumer Branch, Wartime Prices and Trade Board held in 1944, and includes the agenda and outline of issues for the Conference, as well as a separate report submitted by Kate Aitken, Supervisor of the Conservation Programme, on the establishment and progress across Canada of "Remake Centres." These centres were for teaching women to conserve new yard goods by making over existing garments.

The fonds also contains a scrapbook kept by Marion Conroy of clippings and ephemera dating from 1941-1944. As well as documenting Marion Conroy's activities, the scrapbook contains information on the organization and personalities involved in the Board and the Consumer Branch, such Donald Gordon and Byrne Hope Sanders. Also present are news accounts of the many rules and regulations applied to all aspects of the production and consumption of consumer goods, from fashion, food and drink, and housing, to the delivery and return of purchased goods.

A sound recording of an interview conducted by Dr. Anne Millar with Aaron Francis, PhD candidate, for the Oral History Hub pilot project. The interview includes discussions about Francis's family background, their decision to come to Waterloo and the path that brought them here, as well as their thoughts about the institution and where it will be at 100 years old, in 2057. Additional topics include Jamaica, Leeds, England, immigration, COM DEV, art, political science, and Francis's PhD studies. The interview was conducted virtually from Waterloo, Ontario. File also contains a transcript of the interview.

Fonds consists of materials created and accumulate by Dana Porter during his personal and professional career, as well as materials collected posthumously and created and accumulated by his wife and children. Includes photographs, correspondence, research notes, essays and other writings, ephemera, scrapbooks and clippings.

Collection contains prints of Canadian landscapes done by William Henry Bartlett in 1841 and portraits of prominent 17th and 18th century politicians from Europe and Canada. Also included are letters from English prime ministers dating around the 1700s. The collection is arranged in one series consisting of print engravings, a file of Bartlett prints, and a scrapbook containing letters.

Collection contains a scrapbook of newspaper clippings concerning the 1935 federal elections in Canada. They document the campaign in Kitchener-Waterloo and the surrounding area, along with other parts of Ontario, Alberta, and Saskatchewan. Included is coverage of various political parties such as the Conservatives, Co-operative Commonwealth Federation (C.C.F.) and Liberals. Clippings predominantly originate from the Kitchener Daily Record, with others from the Mail and Empire, the Toronto Star, and Daily Star appearing throughout.