1Peter S. Du Ponceau to Thomas Jefferson, 1 March 1819 (Jefferson Papers)
I am ordered by the Historical Committee to inform you that they have caused to be transmitted to...
2To 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...
3Peter S. Du Ponceau to Thomas Jefferson, 11 December 1817 (Jefferson Papers)
In the last letter which I had the honor of writing to you, I omitted to return you thanks in the...
4Peter S. Du Ponceau to Thomas Jefferson, 5 January 1818 (Jefferson Papers)
I do myself at present the honor merely to acknowledge the receipt of your Letter of the 30 th...
5Peter 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...
6Peter S. Du Ponceau to Thomas Jefferson, 18 July 1820 (Jefferson Papers)
I hope I shall not be considered intrusive in communicating to you the Substance of the answer I...
7Enclosure: Peter S. Du Ponceau’s Comparison of the Nottoway and Iroquois Languages, [ca. 13 July 1820] (Jefferson Papers)
Affinities of the Nottoway language with the Iroquois Dialects Nottoway Nottoway The Sun Aheeta ,...
8Enclosure: Peter S. Du Ponceau’s Comparison of Indian Numerals, [ca. 12 July 1820] (Jefferson Papers)
Indian Numerals The Onondago is taken from Zeisberger’s Grammar The Mohawk from Luther’s...
9Peter S. Du Ponceau to Thomas Jefferson, 9 June 1818 (Jefferson Papers)
I have the honor of enclosing to you the Prospectus of the first Volume of our Historical...
10Peter S. Du Ponceau to Thomas Jefferson, 14 February 1818 (Jefferson Papers)
I have the satisfaction to inform You that the Volume of the Society ’s Transactions now in the...