21From Thomas Jefferson to John Vaughan, 14 January 1802 (Jefferson Papers)
In answer to your favor of Dec. 29. it is not in my power to inform you as to the existence or...
22From Thomas Jefferson to John Vaughan, 28 June 1803 (Jefferson Papers)
I recieved last night your favor of the 25th. covering mr Heineken’s letter & list, & the Rules &...
23From Thomas Jefferson to John Vaughan, 14 August 1803 (Jefferson Papers)
I am much obliged to you for the trouble you have taken in procuring a copy of Dr. Priestley’s...
24From Thomas Jefferson to John Vaughan, 18 May 1804 (Jefferson Papers)
On my arrival here I found your favor of the 8th. instant, and now return you the Diplomas...
25From Thomas Jefferson to John Vaughan, 2 May 1805 (Jefferson Papers)
In your letter of Nov. 16. you express a desire to obtain for the Philosophical society an early...
26From Thomas Jefferson to John Vaughan, 5 May 1805 (Jefferson Papers)
Your favor of Apr. 29. came to hand the day after mine of May 2. was written. some parts of it...
27From James Madison to John Vaughan, ca. 14 May 1805 (Madison Papers)
Letter not found. Ca. 14 May [1805] . Cover sheet (PPAmP) addressed to Philadelphia wine merchant...
28From Thomas Jefferson to John Vaughan, 15 August 1805 (Jefferson Papers)
I now return you the inclosed with many thanks for the opportunity of perusing it, which I have...
29From Thomas Jefferson to John Vaughan, 14 January 1806 (Jefferson Papers)
I recieved lately from Genl. Wilkinson at St. Louis a package in which the articles in the...
30From Thomas Jefferson to John Vaughan, 25 March 1806 (Jefferson Papers)
I send you for the use of the Philosophical society a copy of my communications to Congress of...