Columbia subject headings:
Harvard subject headings:
Frontier and pioneer life--West (U.S.)
Overland journeys to the Pacific.
Pioneers--West (U.S.)--Biography
Pioneers--West (U.S.)--Correspondence.
West (U.S.)--Biography.
Princeton subject headings:
Frontier and pioneer life--West (U.S.)
Overland journeys to the Pacific.
Pioneers--West (U.S.)--Biography.
Pioneers--West (U.S.)--Correspondence.
West (U.S.)--Biography.