1Joseph C. Cabell to Thomas Jefferson, 4 July 1816 (Jefferson Papers)
was also known as the Washington hawthorn ( comprised of Washington hawthorns planted at
2Joseph C. Cabell to Thomas Jefferson, 4 August 1816 (Jefferson Papers)
agriculture; and hawthorn hedges [index entry] ...Maine), Thomas; and hawthorn hedges [index...
3Joseph C. Cabell to Thomas Jefferson, 30 March 1817 (Jefferson Papers)
agriculture; and hawthorn hedges [index entry] hawthorn [index entry]