Columbia subject headings:
Harvard subject headings:
Europe--Colonies--History--19th century--Congresses.
Europe--Emigration and immigration--History--19th century--Congresses.
Women travelers--Europe--History--19th century--Congresses.
Princeton subject headings:
Europe--Colonies--History--19th century--Congresses.
Europe--Emigration and immigration--History--19th century--Congresses.
Women travelers--Europe--History--19th century--Congresses.