| Adams Family Tree | | Holbrook Family Tree |
| | John Holbrook, Jr. |
| | Mary Hargis-Hammon |
| | \/ |
| | John Holbrook, III |
| | Mary "Mollie" Cooksey |
| | \/ |
| | Robert Alfred Holbrook, Sr. (1785 to 1849) |
| | Mary Elizabeth "Polly" McCoy (1789 to 1864) |
| | \/ |
| | James Floyd Holbrook (1815 to 1892) |
| | Frances "Fannie" Jordan (1816 to 1887) |
| | \/ |
| James Adams | | Thomas Floyd Holbrook, Sr. (1854 to 1927) |
| Mary Margaret (Maiden Name Unknown) | | Sarah Catherine Lawson (1853 to 1943) |
| \/ | | \/ |
| James William Adams (1871 to 1939) | | Malinda Frances Holbrook (1880 to 1935) |
| Parents of Nine Children | |