1To Benjamin Franklin from Robert Morris, 4 December 1781 (Franklin Papers)
: Historical Society of Pennsylvania, University of Pennsylvania Library; copy: Library of Congress
2To Benjamin Franklin from Robert Morris, 17 April 1782 (Franklin Papers)
Historical Society of Pennsylvania, University of Pennsylvania Library; copy: Library of Congress
3To Benjamin Franklin from Robert Morris: Two Letters, 23 May 1782 (Franklin Papers)
...Society, Historical Society of Pennsylvania, University of Pennsylvania Library; copy: Library...