Columbia subject headings:
Harvard subject headings:
German Americans--Ethnic identity.
German Americans--History--19th century
German Americans--History--20th century.
German Americans--Social life and customs.
Germany--Emigration and immigration--History.
Immigrants--United States--Social life and customs.
United States--Emigration and immigration--History.
Princeton subject headings:
German Americans--Ethnic identity.
German Americans--History--19th century.
German Americans--History--20th century.
German Americans--Social life and customs.
Germany--Emigration and immigration--History.
Immigrants--United States--Social life and customs.
United States--Emigration and immigration--History.