Columbia subject headings:
Butler family--History.
Germany--Biography.
Soldiers--Family relationships--Germany--History.
Soldiers--Germany--History.
Harvard subject headings:
Butler family--History.
Generals--Germany--Biography
Germany--Genealogy.
Soldiers--Germany--Biography
World War, 1939-1945--Germany--History.
Princeton subject headings:
Butler family--History.
Germany--Biography.
Soldiers--Family relationships--Germany--History.
Soldiers--Germany--History.