Historical Society, Ottawa. Felicity L. Leung (1981). Grist and Flour Mills in Ontario. National Historic Parks and Sites Branch, Parks Canada, Environment Canada. Celeste A. Peters (2005). The Grist Mill. Weigl Educational Publishers Limited. References External links Watson's Mill See also Esterhazy Flour Mill - 1904 wood-frame construction flour mill in Saskatchewan Flour Mill Krause Milling Co. - 1929 grain elevator and flour mill site in Radway, Alberta. Lake of the Woods Milling Company Limited - started May 21, 1887 in Keewatin, Ontario. Ritchie Mill - oldest surviving flour mill in the province of Alberta. List of designated heritage properties in Ottawa Flour mills in Canada Buildings and structures in Ottawa Watermills in Canada Museums in Ottawa Mill museums in Canada Designated heritage properties in Ottawa History of agriculture in Ontario Industrial buildings in Ontario