1Horatio Turpin to Thomas Jefferson, 28 October 1813 (Jefferson Papers)
Oxford Iron Works (Campbell Co. firm) [index entry]
2Thomas Jefferson to David Ross, 1 August 1813 (Jefferson Papers)
Oxford Iron Works (Campbell Co. firm) [index entry]
3Thomas Jefferson to Reuben Perry, 26 December 1812 (Jefferson Papers)
Oxford Iron Works (Campbell Co. firm) [index entry]
4Thomas Jefferson to Reuben Perry, 10 December 1812 (Jefferson Papers)
Oxford Iron Works (Campbell Co. firm) [index entry]
5Thomas Jefferson to Robert Richardson, 10 December 1812 (Jefferson Papers)
Oxford Iron Works (Campbell Co. firm) [index entry]