1William Thornton to Thomas Jefferson, 10 May 1810 (Jefferson Papers)
merino sheep; breeding of [index entry]
2Thomas Jefferson to James Madison, 13 May 1810 (Jefferson Papers)
merino sheep; breeding of [index entry]
3Enclosure: Thomas Jefferson’s Notes on Breeding Merino Sheep, [ca. 13 May 1810] (Jefferson Papers)
merino sheep; breeding of [index entry]
4William Thornton to Thomas Jefferson, 8 June 1810 (Jefferson Papers)
merino sheep; breeding of [index entry]
5Thomas Jefferson to Charles Willson Peale, 20 August 1811 (Jefferson Papers)
merino sheep; breeding of [index entry]
6William Caruthers to Thomas Jefferson, 26 March 1813 (Jefferson Papers)
merino sheep; breeding of [index entry]
7John Adams to Thomas Jefferson, 15 September 1813 (Jefferson Papers)
merino sheep; breeding of [index entry]
8David A. Leonard to Thomas Jefferson, 30 December 1813 (Jefferson Papers)
merino sheep; breeding of [index entry]
9Thomas Jefferson to Francis C. Gray, 4 March 1815 (Jefferson Papers)
merino sheep; breeding of [index entry]