1Thomas Jefferson to Horatio G. Spafford, 14 May 1809 (Jefferson Papers)
I have duly recieved your favor of Apr. 3. with the copy of your General Geography, for which I...
2From James Madison to Horatio Gates Spafford, [ca. 25 July] 1810 (Madison Papers)
I have recd. your favor of July 7. accompanied by your printed circular on the subject of your...
3Thomas Jefferson to Horatio G. Spafford, 15 August 1813 (Jefferson Papers)
Your favor of the 2 d inst. is duly recieved and I thank you for the mark of attention it...
4From John Adams to Horatio Gates Spafford, 6 September 1813 (Adams Papers)
I have received by the Mail your Friendly Letter of L.M. 31. with your Gazetteer of the State of...
5From John Adams to Horatio Gates Spafford, 7 September 1813 (Adams Papers)
I have received by the Mail your friendly Letter of 8 Mo. 31. with your Gazetteer of the State of...
6From John Adams to Horatio Gates Spafford, 16 October 1813 (Adams Papers)
Your Ambition to Spread information of the growing prosperity of your country is amiable and...
7From John Jay to Horatio Gates Spafford, 20 October 1813 (Jay Papers)
I have had the pleasure of recieving your Letter of the 22 r . Ult, and also the Copy of your...
8From John Adams to Horatio Gates Spafford, 22 November 1813 (Adams Papers)
I have recd. the Gazetteer of New York, which you design for the Emperor of all the Russias, and...
9From John Adams to Horatio Gates Spafford, 29 December 1813 (Adams Papers)
I have delivered the Copy of your Gazetteer of New York, intended for the American Accademy of...
10From John Adams to Horatio Gates Spafford, 2 January 1814 (Adams Papers)
I resigned the Office of President of The Academy before your Nomination and have not Since...