| First Name | Cyrus |
| Surnames | |
| Gender | Male |
| Birth Information | Nov. 1772 Thomas Jefferson’s Farm Book, page 10 |
| Enslaver | Peter Jefferson (1708-1757) Thomas Jefferson’s Farm Book, page 10 |
| Thomas Jefferson Thomas Jefferson’s Farm Book, page 10 |
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| Hastings Marks (d. 1811) Thomas Jefferson’s Farm Book, page 25 |
| Mother | Sall (d. 1774) Thomas Jefferson’s Farm Book, page 24 |
© 2025 Thomas Jefferson Foundation, Getting Word: African American History at Monticello supported by The Mellon Foundation