Columbia subject headings:
Midwives--Great Britain--History.
Nursing--Great Britain--History.
Public health nursing--Great Britain--History.
Harvard subject headings:
Midwives--History--20th century.
Nursing--Great Britain--History--20th century.
Nursing--History--20th century.
Princeton subject headings:
Midwives--Great Britain--History.
Nursing--Great Britain--History.
Public health nursing--Great Britain--History.