Columbia subject headings:
Harvard subject headings:
America--Description and travel.
Cordua, Theodor, 1796-1857--Journeys--America.
Germans--America.
Merchants--Germany--Biography.
Merchants--Germany--Travel--America.
Princeton subject headings:
America--Description and travel.
Cordua, Theodor, 1796-1857--Travel--America.
Germans--America.
Merchants--Germany--Biography.