Columbia subject headings:
Harvard subject headings:
California--Description and travel.
Overland journeys to the Pacific.
Pioneers--United States--Biography
Powers, Mary Rockwood, -1858.
United States--History--19th century.
West (U.S.)--Description and travel.
West (U.S.)--History--1848-1860.
Women pioneers--United States--Biography.
Princeton subject headings:
California--Description and travel.
Overland journeys to the Pacific.
Powers, Mary Rockwood, -1858.
West (U.S.)--Description and travel.