Photo presumably taken in Ottawa, late 1920s.
Bridget Loretto Killeen (1861-1932), daughter of Patrick Killeen and Bridget Galligan and wife of John James Lahey; with daughter Mary Gladys Lahey (1901-1959), wife of Richard John Anthony Cunningham (1900-1959); and a grandson (probably John Cunningham [1926-early 1990s]; but possibly Robert L. Cunningham [1928-1959]). Click thumbnail preview to see larger image:
Richard J.A. Cunningham (originally of Arnprior, Renfrew Co., Ontario) and Mary Gladys Lahey (originally of Ottawa, Carleton Co. Ontario) lived first in Detroit, Michigan, before settling in South Bend, Indiana. They died on 11 July 1959, along with two of their four children (Robert L. and Mary Ann Cunningham), the victims of a horrible auto accident: a head-on collision about a mile from Three Rivers, Michigan.
When I asked my father about this accident, he remembered the date exactly.