Columbia subject headings:
Depressions--1929--United States.
Public welfare--United States--History--20th century.
Social workers--New York (State)--New York--History.
Harvard subject headings:
Depressions--1929--United States
Public welfare--United States--History--20th century
Social workers--New York (State)--New York--History.
Princeton subject headings:
Depressions--1929--United States.
Public welfare--United States--History--20th century.
Social workers--New York (State)--New York--History.