Columbia subject headings:
Harvard subject headings:
Child labor--Prairie Provinces--History--20th century.
Frontier and pioneer life--Prairie Provinces.
Pioneer children--Prairie Provinces--Social conditions.
Prairie Provinces--History.
Princeton subject headings:
Child labor--Prairie Provinces--History.
Farm life--Prairie Provinces.
Frontier and pioneer life--Prairie Provinces.
Pioneer children--Employment--Prairie Provinces.
Pioneer children--Prairie Provinces--Social conditions.
Prairie Provinces--Rural conditions.
Rural families--Prairie Provinces--Social conditions.