
| First Name | Bonnycastle |
| Surnames | Hern |
| Gender | Male |
| Birth Information | 1826, Monticello Inventory of Monticello slaves, 1826 |
| Enslaver | Thomas Jefferson Inventory of Monticello slaves, 1826 |
| Mother | Francis Gillette Hern (b. 1788) 1827 Appraisal of slaves in Albemarle County, Albemarle County Will Book 9 |
| Father | David Hern Jr. (b. 1784) Inventory of Monticello slaves, 1826 |