1Samuel R. Demaree to Thomas Jefferson, 13 February 1814 (Jefferson Papers)
agriculture; and weather [index entry]
2Charles Willson Peale to Thomas Jefferson, 2 May 1815 (Jefferson Papers)
agriculture; and weather [index entry]
3Joel Yancey to Thomas Jefferson, 29 August 1816 (Jefferson Papers)
agriculture; and weather [index entry]
4Elizabeth Trist to Thomas Jefferson, 10 October 1816 (Jefferson Papers)
agriculture; and weather [index entry]
5Philadelphia Society for Promoting Agriculture to Thomas Jefferson, 13 November 1816 (Jefferson Papers)
agriculture; and weather [index entry]
6Bernard Peyton to Thomas Jefferson, 22 August 1822 (1st letter) (Jefferson Papers)
agriculture; and weather [index entry]