The fonds consists of correspondence, subject files relating to MacLachlan's role as secretary to Norman Rogers and as a member of the Queen's University Board of Trustees. Of particular note is a wooden bound volume titled "A Potpourri of Sidelights and Shadows from Turkey." This collection of sketches was printed for private circulation only. Rev. Alexander Grant MacLachlan Sr. (Queen's 1884) attended Union Theological Seminary, New York City,and was appointed a teaching missionary eventually becoming President of the International College at Smyrna. These memoirs show the outreach of American missionary activity and political and military developments in Asia Minor from his forty years in the educational missionary service in Turkey including during the Greco-Turkish War (1919-1922).
The fonds consists of letterbooks and financial records pertaining to the McLaughlin Carriage Works in Oshawa. The letterbooks and financial records offer a very full picture of the commercial activities of the McLaughlin carriage business, the forerunner of the McLaughlin automobile enterprises. Also included are a collection book and a general ledger.
Fonds consists of correspondence, reports, proceedings, brochures, pamphlets, and news clippings. The material documents the movement for the proposed Quinte Parkway, which ultimately became the Loyalist Parkway.
Fonds consists of photographs of two medals awarded to Robert Kerr Paterson, as captain of the 1904 Queen's University Canadian Intercollegiate Rugby Football Union Championship Team; head and shoulders photograph of R.K. Paterson wearing the Tricolor sweater.
Fonds consists of minute books (1886-1920) and a ledger (1886-1905) for the Kingston Branch; and minutes , correspondence, subject files, and financial records relating to the ITU Pension Plan in Canada.
The fonds consists of corresponence and copies of documents relating to the dispute between General A.G.L. McNaughton and J.L. Ralston (1943); correspondence relating to Canadian political affairs. There are numerous memoranda relating to interviews with Prime Ministers and senior politicians and the numerous confidential memoranda and correspondence addressed to Bruce Hutchinson and Victor Sifton provide a day-to-day description of behind-the-scenes life in Ottawa with details on the important issues and personalities involved. Correspondence includes Lester B. Pearson, Grant Dexter, Ross Thatcher, John P. Robarts, Bruce Hutchison, T.A. Crerar and Mitchell Sharp as well as many other prominent political figures.
The fonds consists of an inventory of stock (1889 and 1904), minutes and history of firm, letters of incorporation and other legal documents, and advertisements for the store. Also included are family genealogies and correspondence from family members, as well as a diary (1864).
