Columbia subject headings:
German Americans.
Germans--United States.
Lusitania (Steamship)
United States--Defenses.
United States--Foreign relations.
United States--Politics and government--1913-1921.
War.
World War, 1914-1918--United States.
Harvard subject headings:
German Americans
Germans--United States
Lusitania (Steamship)
United States--Defenses
United States--Foreign relations
United States--Politics and government--1913-1921
War
World War, 1914-1918--United States
Princeton subject headings:
Germans--United States.
Lusitania (Steamship)
United States--Defenses.
United States--Foreign relations.
United States--Politics and government--1913-1921.
War.
World War, 1914-1918--United States.