1George N. Ralls to Thomas Jefferson, 2 April 1815 (Jefferson Papers)
Virginia; minerals of [index entry]
2Enclosure: John Wood’s Circular Call for Statistics on Virginia, [before 27 July 1819] (Jefferson Papers)
Virginia; minerals of [index entry]
3John R. Cotting to Thomas Jefferson, 20 January 1821 (Jefferson Papers)
Virginia; minerals of [index entry]