Peter Bruce was born on 2 April 1834 in the North West Territories, the son of James Bruce of the Kildonan Parish and his wife the former Mary McNab. Peter married Catherine Hallet on 1 March 1865 at the St. James Anglican Church. They settled on River Lot 27 in St. James, which is now the present-day Bruce Park. (The gates to Bruce Park are located on the land of James Bruce who was Peter Bruce’s brother. Lilac bushes at the gates, planted by James Bruce, still bloom every spring.) They had ten children:
- Ann Bruce was born on 21 March 1866. She married but never had children.