Columbia subject headings:
Harvard subject headings:
Fried. Krupp AG--History.
Fried. Krupp GmbH--History.
Historisches Archiv Krupp--History.
Household employees--Germany--History.
Krupp family--History.
Villa Hügel (Essen, Germany)--History.
Princeton subject headings:
Fried. Krupp AG--History.
Fried. Krupp GmbH--History.
Historisches Archiv Krupp--History.
Household employees--Germany--History.
Krupp family--History.
Villa Hügel (Essen, Germany)--History.