1To George Washington from Rodolph Valltravers, 19 November 1791 [letter not found] (Washington Papers)
Letter not found: from Rodolph Valltravers, 19 Nov. 1791. On 6 June 1792, in listing his previous...
2To George Washington from Rodolph Valltravers, 3 July 1791 [letter not found] (Washington Papers)
Letter not found: from Rodolph Valltravers, 3 July 1791. In a letter to GW of 30 Nov.,...
3To George Washington from Rodolph Valltravers, 17 August 1791 [letter not found] (Washington Papers)
Letter not found: from Rodolph Valltravers, 17 Aug. 1791. Valltravers described to GW on 30 Nov....
4To George Washington from Rodolph Valltravers, 6 June 1792 (Washington Papers)
The Packet, with instructive Materials, collected from the Academies of Berlin, Leipzig,...
5To George Washington from Rodolph Valltravers, 21 July 1791 (Washington Papers)
Copy. No. 1 ⟨ illegible ⟩ May it please Yr Excellcy! Sir! Roterdam, July 21. 91. Humbly...
6To George Washington from Rodolph Valltravers, 20 March 1791 (Washington Papers)
Having received, by my worthy Friend, Captn Bell, of the Union, the inclosed Letter from Mr Jn...