1Alrichs & Dixon to Thomas Jefferson, 19 August 1812 (Jefferson Papers)
Alrichs & Dixon (Wilmington, Del., firm); and carding machine [index entry]
2Alrichs & Dixon to Thomas Jefferson, 2 December 1812 (Jefferson Papers)
Alrichs & Dixon (Wilmington, Del., firm); and carding machine [index entry]
3Alrichs & Dixon to Thomas Jefferson, 1 January 1813 (Jefferson Papers)
Alrichs & Dixon (Wilmington, Del., firm); and carding machine [index entry]
4Alrichs & Dixon to Thomas Jefferson, 10 March 1813 (Jefferson Papers)
Alrichs & Dixon (Wilmington, Del., firm); and carding machine [index entry]
5Alrichs & Dixon to Thomas Jefferson, 18 March 1813 (Jefferson Papers)
Alrichs & Dixon (Wilmington, Del., firm); and carding machine [index entry]