This picture was taken to commemorate the 50th wedding anniversary of William Daniel Conroy and Bertha Evelyn Tupper. They were married on 28 Apr 1899 and went on to have thirteen children (including my grandmother, Alyce).
William was the son of Michael and Bridget (Lyons) Conroy. Poor Bridget died when William was only six months old, so William was left with her parents and Michael moved to the US to find work.
Bertha was the daughter of Robert G. and Ruth Elizabeth (Bentley) Tupper.