Columbia subject headings:
Midwifery--Social aspects--Ontario.
Midwives--Ontario--Social conditions--20th century.
Minority women--Employment--Ontario.
Race discrimination--Ontario.
Harvard subject headings:
Midwifery--Social aspects--Ontario.
Midwives--Legal status, laws, etc.--Ontario.
Midwives--Ontario--Social conditions--20th century.
Minority women--Employment--Ontario.
Minority women--Ontario.
Race discrimination--Ontario.
Sex discrimination against women--Ontario.
Princeton subject headings:
Midwifery--Social aspects--Ontario.
Midwives--Ontario--Social conditions--20th century.
Minority women--Employment--Ontario.
Race discrimination--Ontario.