Columbia subject headings:
Philanthropists--Biography.
Social service--History.
Social workers--Biography.
Volunteer workers in social service--Biography.
Harvard subject headings:
Philanthropists--Biography.
Social service--History
Social workers--Biography.
Volunteer workers in social service--Biography.
Princeton subject headings:
Philanthropists--Biography.
Social service--History.
Social workers--Biography.
Volunteer workers in social services--Biography.