1Pierre Samuel Du Pont de Nemours to Thomas Jefferson, [ca. 28 July 1810] (Jefferson Papers)
manufacturing, household; and protection of industry [index entry]
2Isaac Briggs to Thomas Jefferson, 16 February 1816 (Jefferson Papers)
manufacturing, household; and protection of industry [index entry]
3Thomas Jefferson to Isaac Briggs, 27 February 1816 (Jefferson Papers)
manufacturing, household; and protection of industry [index entry]