1Peter 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...
2Peter 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...
3Enclosure: 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...
4Peter 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...
5Peter 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...
6Peter 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...
7Peter 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...
8Peter 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...
9Peter 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...
10Peter 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...