1Alrichs & Dixon to Thomas Jefferson, 19 August 1812 (Jefferson Papers)
cotton; carding machine [index entry]
2Alrichs & Dixon to Thomas Jefferson, 10 March 1813 (Jefferson Papers)
cotton; carding machine [index entry]
3Alrichs & Dixon to Thomas Jefferson, 2 December 1812 (Jefferson Papers)
cotton; carding machine [index entry]