| Name | Charles DUVALL, 5G Grandfather |
| Birth | 20 Jul 1729, Queen Anne's Parish, MD |
| Death | 20 Sep 1814, Prince George's Co., MD |
| Father | Benjamin DUVALL (ca1692-1774) |
| Mother | Sophia GRIFFITH (1691-1730) |
| Other spouses | Cassandra "Cassie" BRASHEAR, 1C6R |
| Marriage | 16 Dec 1764 |
| Spouse | Rebecca BECKETT, 5G Grandmother |
| Birth | ca 1729 |
| Death | 1774 |
| 1 M | Rezin DUVALL, 5G Uncle |
| Birth | 8 Feb 1768, Prince George's Co., MD |
| Death | ca 1815, Prince George's Co., MD |
| Spouse | Rebecca FOWLER |
| Spouse | Elizabeth HUGHES |
| 2 F | Amelia DUVALL, GGGG Grandmother |
| Birth | ca 1774, Prince George's Co., MD |
| Death | 18 Aug 1821, St. Martin's Parish, LA (Pointe Claire Plantation) |
| Spouse | Belt H. BRASHEAR, GGGG Grandfather |
| Marriage | Feb 1790, Prince George's Co., MD |
| 3 M | Colmar DUVALL, 5G Uncle |
| Spouse | Margaret CLARKE |
| Marriage | 3 Jan 1789 |
| 4 M | Charles DUVALL Jr., 5G Uncle |
| Spouse | Jemima Ann TAYLOR |
| 5 M | Denton DUVALL, 5G Uncle |
| Spouse | Sarah BRYAN |
| Marriage | ca 1805, Berkeley Co., VA |