1Peter S. Du Ponceau to Thomas Jefferson, 8 February 1816 (Jefferson Papers)
The letter which you did me the honor to write to me on the 22 d ult o was duly laid before the...
2Peter S. Du Ponceau to Thomas Jefferson, 9 October 1820 (Jefferson Papers)
I take the liberty of introducing to you in the person of M r L. C. Vanuxem , the bearer hereof,...
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...
7Peter 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...
8Peter 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...
9Peter 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...
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...
11Peter S. Du Ponceau to Thomas Jefferson, 14 April 1818 (Jefferson Papers)
I have the Satisfaction to inform you that the Historical Committee has received from M r Biddle...
12Peter S. Du Ponceau to Thomas Jefferson, 24 February 1818 (Jefferson Papers)
I have received the Letter you have done me the honor to write to me on the 19 th inst, including...
13Peter 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...
14Peter S. Du Ponceau to Thomas Jefferson, 17 February 1817 (Jefferson Papers)
I have received the letter which you have done me the honor to write to me on the 26 th ult o ....
15Peter S. Du Ponceau to Thomas Jefferson, 6 January 1818 (Jefferson Papers)
I have now the honor to answer your Letter of the 30 th ult o . The Committee , I have no doubt,...
16Peter S. Du Ponceau to Thomas Jefferson, 14 December 1820 (Jefferson Papers)
M r Du Ponceau presents his respects to M r Jefferson , & has the honor of Sending to him at the...
17Peter S. Du Ponceau to Thomas Jefferson, 13 July 1820 (Jefferson Papers)
M r Du Ponceau has the honor of enclosing to M r Jefferson , a Short Comparative Vocabulary of...
18Peter S. Du Ponceau to Thomas Jefferson, 22 January 1818 (Jefferson Papers)
The Historical Committee met last night, when your Letter of the 30 th ult o & my answers of the...
19Peter S. Du Ponceau to Thomas Jefferson, 12 July 1820 (Jefferson Papers)
I have received the letter you have done me the honor to write to me dated the 7 th inst....
20Peter S. Du Ponceau to Thomas Jefferson, 12 September 1820 (Jefferson Papers)
The Vocabulary of the Nottoway language which you have had the goodness to send to me , has only...
21Peter S. Du Ponceau to Thomas Jefferson, 24 January 1818 (Jefferson Papers)
I have received the Letter you have done me the honor to write to me on the 17 th inst. There is...
22Peter S. Du Ponceau to Thomas Jefferson, 14 November 1815 (Jefferson Papers)
It is a duty no less pleasing than honorable to me, to address you on behalf of the Historical &...
23Peter S. Du Ponceau to Thomas Jefferson, 5 December 1817 (Jefferson Papers)
The two letters which you have done me the honor to write to me, dated the 6 th & 7 th ultimo ,...
24Enclosure: 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 ,...
25Enclosure: 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...