Columbia subject headings:
Mentally ill--Care--United States--History--19th century.
Mentally ill--Care--United States--History--20th century.
Psychiatrists--United States--Correspondence.
Psychiatry--United States--History--19th century.
Psychiatry--United States--History--20th century.
Harvard subject headings:
Mentally ill--Care--United States--History
Mentally ill--Care--United States--History--19th century
Mentally ill--Care--United States--History--20th century
Psychiatrists--United States--Correspondence.
Psychiatry--United States--History--19th century.
Psychiatry--United States--History--20th century.
Psychiatry--United States--History.
Princeton subject headings:
Mentally ill--Care--United States--History--19th century.
Mentally ill--Care--United States--History--20th century.
Psychiatrists--United States--Correspondence.
Psychiatry--United States--History--19th century.
Psychiatry--United States--History--20th century.