The History of the American Indians by James Adair, 1775

Report on Jefferson's authorization to dispatch Lewis and Clark, 1803.

  
Detail of map showing the vicinity of
Camp River Dubois, published by
Ruben Golde Thwaites in 1905

History of Louisiana, in three volumes,
by Antoine Le Page du Pratz, published in 1758

  
An Account of Louisiana,
published by
the Departments of
State and Treasury in 1803