1To Thomas Jefferson from Julian Ursin Niemcewicz, 27 May 1798 (Jefferson Papers)
Au milieu de l’Inquietude et de l’Anxiété que vous eprouvez Monsieur sur le sort de vôtre Ami,...
2To Thomas Jefferson from Julian Ursin Niemcewicz, 9 June 1798 (Jefferson Papers)
Votre lettre Monsieur ne m’a été remise qu’hier, vous aurez donc la bonté de m’excuser si ma...
3To Thomas Jefferson from Julian Ursin Niemcewicz, 3 September 1798 (Jefferson Papers)
Me voila enfin de retour de ma tournée vers l’Est, j’ai été jusqu’à Boston & Porthsmuth, de la à...
4To Thomas Jefferson from Julian Ursin Niemcewicz, 19 January 1799 (Jefferson Papers)
It is only in the beginning of this week that I had the pleasure to receive your favor of 30 Nov:...
5To Thomas Jefferson from Julian Ursin Niemcewicz, 2 August 1800 (Jefferson Papers)
I had the pleasure to receive your favor of 23 July & hasten to give you immediately such...
6To Thomas Jefferson from Julian Ursin Niemcewicz, 28 December 1800 (Jefferson Papers)
I hope the letter I had the honour of writing you sir three months ago containing information...