The collection contains primary source information on the history of the Lake Massawippi area, including North Hatley, Ayer's Cliff, and Hatley Village from the 1890s to 2008. It consists of information on the activities of the Hatley Water Company, the Village of Hatley, Funding Co. Ltd., North Hatley Historical Society, Stanstead Historical Society, Ayer's Cliff Water Company, LeBaron & Co., Massawippi Country Club, Connaught Inn Co., among others. The collection is comprised of the following series; K.E Kennedy (1901-[1988?]), North Hatley Historical Society ([1992?]-2008), Stanstead Historical Society (1963), Genealogy ([19--?]-2005), Cemetery Indexes ([199-?]), Scrapbooks ([19--?]-[195-?]), Photographs, Ayer's Cliff Water Company (1908-1940), LeBaron & Co. (1926-1968), Wills, Wills and Obituaries (1913-1979), History of the Eastern Townships (1909-1984), North Hatley Electoral Lists (1902-1939), Ledgers (1890-1949), Artifacts, Indexes (1912), North Hatley Water Company (19894-1914), Hatley Tourism (1973-[19--?]), Calenders, and Miscellaneous.