Letter signed by John Calvert, Fort Nelson, to George Rogers Clark, January 11, 1782, A0289-00476. Missouri Historical Society Library and Research Center.

Letter signed by John Calvert, Fort Nelson, to George Rogers Clark, January 11, 1782, A0289-00476. Missouri Historical Society Library and Research Center. https://mohistory.mobiusconsortium.org/repositories/2/digital_objects/11444 Accessed September 19, 2024.