Unidentified artist. "Captain Clark and Men Building Huts," in Patrick Gass,
Journal of the Voyages and Travels of the Corps of Discovery, under the Command of Capt. Lewis and Capt. Clarke, 1811.
The Newberry Library, Chicago.

First published in 1807, Sergeant Patrick Gass's journal of the Lewis and Clark expedition became quite popular
in the United States and was also published in Europe.