This fonds documents the business activities of the McLauchlan family as well as the military career of Charles Guy McLaughlan. A few personal family records are included. Business records include a cash book for Jones & McLauchlan (1877-1879), as well as financial records of The John McLauchlan Co., Ltd., including 2 letterbooks (1910-1912), a cash journal (1912-1914), a day book (1931-1932), and 2 account ledgers (1910-1932). The ledgers record names of customers, their place of residence and occupation, items purchased, amount charged, and method of payment (cash or labour).
Other business records include a rent book (1928-1942) and advertisements for the McLaughlan store. Several school exercise books containing bookkeeping exercises completed by Douglas McLaughlan and Harry McLauchlan are also included. C. Guy McLaughlan's military records include letters and official communiqués from the Canadian armed forces during the First and Second World Wars. There are also papers and notes from the military hearings and courts martial that McLauchlan was a part of during the inter-war years, as well as reports, receipts, expense forms, periodicals, the Woodstock Cadets nominal role for candidates for officers' school, and a printed nominal roll of officers, non-commissioned officers and men of the 64th Battalion of the C.E.F. issued in 1915. There is also a nominal register for "C" Company No. 12 1/2 Platoon under Lieutenant H. A. McCleave that gives names of individuals, their rank, number, date of enrolment, martial status, religion, place of residence, and section (1915).
Military financial records include a cash book for "A" Company Composite Battalion (1914-1915) and a cash book for "A" Company 67th Regiment, Composite Regiment (1914-1915). Printed booklets include, "Comrades to Canadian Boys" by Major Wallace Forgie of the Military Service Department Canadian Y.M.C.A; "Information for Wives of Soldiers Coming From Overseas" ; and "Two Thousand Officers and Men of the 64th Battalion C.E.F., Sussex, N.B." (1915). Personal records include correspondence between C. Guy McLauchlan and his friends and family; original deeds, correspondence, and genealogical information relating to Elsie Everett McLauchlan's relatives and ancestors with the surnames Lowe, Rickerson, Ricketson, Rickelson, Gilbert, and Case (1835-1927); and a few certificates and mementos pertaining to Anna Marguerite McLauchlan, Douglas McLauchlan, and Annie McGuire McLauchlan.