Columbia subject headings:
Fur trade--Oregon.
Oregon Territory--History--Sources.
Harvard subject headings:
Fur trade--Oregon Territory.
Fur trade--Oregon.
Oregon Territory--History--Sources.
Oregon--History--To 1859--Sources.
Whitman College--Special collections--Elliott-Davies Collection.
Princeton subject headings:
Fur trade--Oregon.
Hudson's Bay Company.
McLoughlin, John, 1784-1857--Correspondence.
Oregon--History--1859-