Single parenthood in the past: Canadian census categories, 1891-1951, and the "normal" family.
Bradbury
B
B
D002170:Canada / Q000208:ethnology; D019352:Censuses / Q000266:history; D005190:Family / Q000208:ethnology; D005191:Family Characteristics / Q000208:ethnology; D049672:History, 19th Century; D049673:History, 20th Century; D015406:Single Parent / Q000145:classification / Q000266:history / Q000706:statistics & numerical data; D020954:Single-Parent Family / Q000208:ethnology / Q000706:statistics & numerical data