11Alrichs & Dixon to Thomas Jefferson, 1 January 1813 (Jefferson Papers)
Alrichs & Dixon (Wilmington, Del., firm); and carding machine [index entry]
12Alrichs & Dixon to Thomas Jefferson, 18 March 1813 (Jefferson Papers)
Alrichs & Dixon (Wilmington, Del., firm); and carding machine [index entry]
13Thomas Jefferson to James Ronaldson, 12 January 1813 (Jefferson Papers)
Alrichs & Dixon (Wilmington, Del., firm); and carding machine [index entry]