John Gourley Pierce (1918-2003) was a Peterborough land surveyor and the son of John Wesley Pierce, also a land surveyor, and Mable Pierce. He graduated from Queen's University, served with the Royal Canadian Engineers in Italy and Europe during WWII where he won the Military Cross for Valour. On returning from the war, he joined his father's survey firm, which then became Pierce & Pierce Land Surveyors, in Peterborough, Ontario. In 1947 he completed the survey of the Ontario-Manitoba boundary started by his father in the 1920's. He was President of the Ontario Land Surveyors Association. He was also active in the community and earned numerous awards, among them a citation for outstanding contribution by the Ontario Land Surveyors Association, a City of Peterborough Award of Merit, Rotary's Paul Harris Fellowship, a Sir Sandford Fleming College Fellowship in Applied Education, and the Governor General's Caring Canadian Award.
John Wesley Pierce (1886-1949), father of John Gourley Pierce, was born in 1886 in Eaton, Quebec, the son of Reverend Barry Pierce and Catherine Farnswoth. He attended University of Toronto and was a member of both the Dominion and Ontario Land Surveyors Associations. He was responsible for the definition of the Ontario-Manitoba boundary, begun in 1921 and finally completed by his son in 1947. Until 1932, he worked for the Topographical Survey Branch of the Dominion Department of the Interior and traveled from New Brunswick to the North-West Territories. In 1932 he settled in Peterborough, Ontario and started the survey firm which would become Pierce & Pierce Land Surveyors. (Biographical account supplied by Catherine Cramer).