Columbia subject headings:
Gerontology--United States--History.
Old age pensions--United States--History.
Older people--Family relationships--United States--History.
Older people--United States--Social conditions.
Harvard subject headings:
Gerontology--United States--History.
Old age pensions--United States--History.
Older people--Family relationships--United States--History.
Older people--United States--Family relationships--History.
Older people--United States--Social conditions.
Princeton subject headings:
Gerontology--United States--History.
Old age pensions--United States--History.
Older people--United States--Family relationships--History.
Older people--United States--Social conditions.