31Peter S. Du Ponceau to Thomas Jefferson, 3 January 1821 (Jefferson Papers)
I have received the Letter you have done me the honor to write to me , dated the 28 th ult o...
32Peter S. Du Ponceau to Thomas Jefferson, 23 March 1821 (Jefferson Papers)
I had the honor some time ago of introducing to you M r L. C. Vanuxem , a young American...
33Peter S. Du Ponceau to Thomas Jefferson, 19 April 1821 (Jefferson Papers)
Your polite & ready answer to the letter I had the honor of writing to you on the Subject of M r...
34To Thomas Jefferson from Peter Stephen Duponceau, 19 May 1825 (Jefferson Papers)
Count Charles Vidûn, of Turin, who will have the honor of delivering you this Letter is one of...
35To Thomas Jefferson from Peter Stephen Duponceau, 5 November 1825 (Jefferson Papers)
By order of the Board of Directors of the Society for the Commemoration of the landing of William...