1Nathaniel Ellicott to Thomas Jefferson, 28 March 1811 (Jefferson Papers)
Evans, Oliver; sells milling screws [index entry]
2Thomas Jefferson to John Staples, 25 January 1814 (Jefferson Papers)
Evans, Oliver; sells milling screws [index entry]
3Thomas Jefferson to Patrick Gibson, 26 January 1814 (Jefferson Papers)
Evans, Oliver; sells milling screws [index entry]