Columbia subject headings:
Families--United States--History--Congresses.
Fertility, Human--United States--History--Congresses.
Harvard subject headings:
Families--United States--History--Congresses.
Fertility, Human--United States--History--Congresses.
Princeton subject headings:
Families--United States--History--Congresses.
Fertility, Human--United States--History--Congresses.