The fonds consists of photographs of labour marches, Drumheller, and union groups in Calgary.

The fonds consists of images of the 1937 May Day Parade in Drumheller, and images of the representatives at the Canadian Congress of Labour conferences in Calgary, Alberta in 1947 and 1948.

The fonds consists of 12 photographs depicting Arthur Johnston and/or workers at a camp in Southern Alberta. The photographs show horses, buggies and other equipment used at the camp. The majority of the photographs use gelatin developing out paper. Seven of the photographs were used as postcards and have brief correspondence, addresses or identification on the back of the photographs. 5 photographs are mounted on cardboard stock.

The fonds consists of an essay written by Arthur's son John Robert Lloyd containing extensive quotes from letters about his work experiences in Alberta; and three copies of photographs of downtown Calgary in the late 1930s.

The collection consists of a scrapbook begun by retired postal employee W. T. "Spud" Murphy and completed by Wayne Arnold, with short essays by Nora Arnold on the history of the Association of Retired Postal Employees and on her family's involvement with Canada Post. It includes historic photographs, newsclippings, copies of early records of the Calgary Post Office Benevolent & Co-operative Association (1922-1923), pages from a 1931-1933 historic scrapbook, an historical essay, lists and biographical sketches of Calgary postal employees, and more recent photographs of postal employees' sports teams and social activities.

Fonds consists of constitution and minutes.