History of early steamboat navigation on the Missouri River : life and adventures of Joseph La Barge (1903)
Chittenden, Hiram Martin, 1858-1917 · New York : F.P. Harper · leaf 274
AMERICAN FUR CO. LEAVES THE RIVER. 239 The American Fur Company, founders of FortBenton, continued to do business on the upper riveruntil 1864, when they sold out to the firm of Hawley,Hubbell & Co., under the style of the NorthwesternFur Company. The negotiations were concluded inthe winter of…