The fonds consists of correspondence regarding investments and insurance payments from United Dairies and Maple Leaf mines.

The collection consists of essays about the histories of Arrow Lumber Sales Ltd. Gunther's Building Supplies Ltd. Mel's Lumber and Building Supplies Ltd., formerly Contractor's Building Supplies; Northern Eau Claire Construction Materials, formerly Eau Claire and Bow River Lumber Co. Revelstoke Companies Ltd. ; and Spray Lakes Sawmills (1980) Ltd. Authors include Jack Peach, Manny Martin, and possibly Wilkie Wanless himself. Includes views of the Northern Eau Claire Lumber and Building Supplies office and a salesman conducting a "rumpus room clinic" for Mel's Lumber; and group portraits of gatherings of Alberta Timber Council and Western Retail Lumbermen's Association.

The fonds consists of photographs of the family; animals (buffalo, yaks, antelope, elk) at Wainwright; women curlers; and buildings and events in Fort Macleod, including the family store. Also consists of slides of parades and events in Fort Macleod and Calgary (1950s).

The fonds consists of William F. Nelson's personal business files, including correspondence from his departure from The Grand Trunk Railway and The Rutland Railroad Co. letters regarding his work and personal struggles with The Alberta Loan and Investment Co. and some correspondence from W.F. Nelson & Co. Includes also business papers regarding clients and other personal files from The Alberta Loan and Investment Co.

The fonds consists of correspondence with suppliers and clients.

The fonds consists of conference proceedings.

The fonds consists of West Canadian Mineral Holdings Ltd. articles of association (1964), minutes and correspondence (1964-1971), auditor's reports (1965, 1967), and annual reports (1966-1967).

The fonds consists of Maclean Drug Store financial ledger (1912-1925) and prescription register (1915-1916); drugstore and Maclean Block financial statements, balance sheets and summary of operations (1923-1932, 1936, 1937, 1939); Wendell's income tax returns (1923-1932); and Maclean Block rental statements and accounts (1928-1937).

The fonds consists of incorporation, legal and financial records; minutes; patent records; contracts, specifications and sales records for mail boxes; newsclippings and historical notes; and photographs of the manufacture of cone water heaters and mail boxes.

The fonds consists of cashbooks, account books, sales records, synoptics, inventories, payroll records, annual financial statements, income tax records and manufacturers' catalogues.