When Pierre LeBrun was born on 19 May 1902, in Saint-Alexis-de-Matapédia, Avignon, Quebec, Canada, his father, Pacifique Lebrun, was 31 and his mother, Henriette Allard, was 28. He married Clarisse LeBreton on 12 April 1944, in Tracadie, Tracadie-Sheila, Gloucester, New Brunswick, Canada. They were the parents of at least 1 daughter. He died on 21 October 1961, in Tracadie, Tracadie-Sheila, Gloucester, New Brunswick, Canada, at the age of 59.