Columbia subject headings:
Harvard subject headings:
Germany--Biography.
Industrialists--Germany--Biography
Krupp family.
Krupp, Alfred, 1812-1887.
Krupp, Friedrich Alfred, 1854-1902.
Krupp, Margarethe, 1854-1931.
Princeton subject headings:
Germany--Biography.
Krupp family.
Krupp, Alfred, 1812-1887.
Krupp, Friedrich Alfred, 1854-1902.
Krupp, Margarethe, 1854-1931.