An accomplished carpenter and boat builder, Patrick Gass proved to be an invaluable and well-liked member of the Lewis and Clark expedition.
Gass was the last survivor of the Corps of Discovery, living until 1870--long enough to.
His records of those forts and of the earth lodges of the Mandans and Hidatsas are particularly detailed and useful.
Promoted to sergeant after the death of Charles Floyd, Gass was almost certainly responsible for supervising the building of Forts Mandan and Clatsop.
An accomplished carpenter and boat builder, Patrick Gass proved to be an invaluable and well-liked member of the Lewis and Clark expedition