Columbia subject headings:
Poland--Emigration and immigration--History--19th century.
Poland--History--Revolution, 1830-1832--Refugees.
Polish Americans--History--19th century.
United States--Emigration and immigration--History--19th century.
Harvard subject headings:
Poland--Emigration and immigration--History--19th century.
Poland--History--Revolution, 1830-1832--Refugees
Polish people--United States--History--19th century.
United States--Emigration and immigration--History--19th century.
Princeton subject headings:
Poland--Emigration and immigration--History--19th century.
Poland--History--Revolution, 1830-1832--Refugees.
Polish people--United States--History--19th century.
United States--Emigration and immigration--History--19th century.