1Thomas Jefferson’s Calculation of Timber Needed by Alexander Hepburn at Poplar Forest, [ca. 8 October 1819] (Jefferson Papers)
Hepburn, Alexander; repairs machines [index entry]
2Thomas Jefferson’s Notes on Alexander Hepburn’s Poplar Forest Materials List, [ca. 8 October 1819] (Jefferson Papers)
Hepburn, Alexander; repairs machines [index entry]
3Alexander Hepburn’s List of Materials for Work at Poplar Forest [ca. 8 October 1819] (Jefferson Papers)
Hepburn, Alexander; repairs machines [index entry]
4Thomas Jefferson to Joel Yancey, 12 May 1820 (Jefferson Papers)
Hepburn, Alexander; repairs machines [index entry]
5Joel Yancey to Thomas Jefferson, 8 October 1819 (Jefferson Papers)
Hepburn, Alexander; repairs machines [index entry]
6Joel Yancey to Thomas Jefferson, 14 October 1819 (Jefferson Papers)
Hepburn, Alexander; repairs machines [index entry]
7Joel Yancey to Thomas Jefferson, 26 September 1819 (Jefferson Papers)
Hepburn, Alexander; repairs machines [index entry]
8Joel Yancey to Thomas Jefferson, 19 November 1819 (Jefferson Papers)
Hepburn, Alexander; repairs machines [index entry]