Columbia subject headings:
Baseball--Social aspects--United States--Congresses.
Baseball--United States--History--Congresses.
United States--Social conditions--Congresses.
Harvard subject headings:
Baseball--Social aspects--United States--Congresses.
Baseball--United States--History--Congresses.
United States--Social conditions--Congresses
Princeton subject headings:
Baseball--Social aspects--United States--Congresses.
Baseball--United States--History--Congresses.
United States--Social conditions--Congresses.