1Thomas Jefferson’s Constitution for Proposed Agricultural Society of Albemarle, [ca. 1 February 1811] (Jefferson Papers)
agriculture; use of gypsum in [index entry]
2Christopher Clark to Thomas Jefferson, 20 March 1816 (Jefferson Papers)
agriculture; use of gypsum in [index entry]
3John Hollins to Thomas Jefferson, 27 January 1811 (Jefferson Papers)
agriculture; use of gypsum in [index entry]
4John Hollins to Thomas Jefferson, 9 February 1810 (Jefferson Papers)
agriculture; use of gypsum in [index entry]
5John Hollins to Thomas Jefferson, 18 March 1810 (Jefferson Papers)
agriculture; use of gypsum in [index entry]
6John Hollins to Thomas Jefferson, 22 April 1810 (Jefferson Papers)
agriculture; use of gypsum in [index entry]
7George Jefferson to Thomas Jefferson, 19 March 1810 (Jefferson Papers)
agriculture; use of gypsum in [index entry]
8Thomas Jefferson to Joel Yancey, 20 February 1816 (Jefferson Papers)
agriculture; use of gypsum in [index entry]
9Thomas Jefferson to John Hollins, 5 February 1810 (Jefferson Papers)
agriculture; use of gypsum in [index entry]
10Thomas Jefferson to Joel Yancey, 7 June 1815 (Jefferson Papers)
agriculture; use of gypsum in [index entry]