John Alexander "Jack" LeMaistre (April 1902 - 28 May 1973) was a son of Christena LeMaistre, dean of the Almonte Sisters.
He married Florence Agnes Mare.
He had three daughters and a son. They got cute with their naming, such that all four of their children's nicknames rhymed:
- Jacqueline Ann "Jackie" (Brunelle), circa 1935 - 2015. .
- Shirley (Ivan McAuliffe), Ottawa, Ontario
- Grace "Gracie" (John Nelson), Belleville, Ontario 
- Edward "Teddy" who died before 2015.