Columbia subject headings:
California--Gold discoveries.
Frontier and pioneer life--California.
Frontier and pioneer life--Oregon.
Overland journeys to the Pacific.
Harvard subject headings:
California--Gold discoveries.
Frontier and pioneer life--California
Frontier and pioneer life--Oregon
Overland journeys to the Pacific
Princeton subject headings:
California--Gold discoveries.
Frontier and pioneer life--California.
Frontier and pioneer life--Oregon.
Overland journeys to the Pacific.