The exact number of participants on the expedition is uncertain, and journals of participants indicate that it may have included as few as 26 and as many as 45. Accounts of the expedition mention Meriwether Lewis, Patrick Gass, John Boley, John Dame, George Gibson, Thomas Proctor Howard, John Newman, George Shannon, Ebenezer Tuttle, William Werner, Alexander Hamilton E. Cann, Jean Baptiste Deschamps La Liberte, Paul Primeau, William Clark, William Bratton, John Ordway, John Collins, George Drouillard, Silas Goodrich, Francois Labiche, Moses B. Reed, John Schields, Richard Warfington, Isaac White, Willard Richard Windsor, Charles Gaugee, Charles Hebert, Etienna Malboeuf, Francois Rivet, Charles Floyd, Nathaniel Hale Pryor, John Colter, Robert Frazer, Hugh Hall, Hugh McNeal, John Robertson, John B. Thompson, Peter Weiser, Joseph Whitehouse, York, Joseph Collin, Jean Baptiste La Jeunesse, Peter Pinaut, and Peter Roi.