| William 'Bill' McMahan | > | Thomas Dearnold 'Tom' McMahan | Rhoda Elizabeth Williams | > |
| Wilson 'John' McMahan | b 18 Jul 1830 | Henry | ||
| | b 13 Apr 1876 | Nancy Henry | |||
| Oliver Burton McMahan | d 29 Dec 1937 | b Sep1839 | William Alexander Mize | |
| |b Nov1909 | | | James H. Mize | Ludema Moon | |
| | | Nancy 'Ludema' Mize | b 1856 | ||
| | | b 28 Apr 1882 | Sarah Kathryn Thomas | ||
| Rhonda McMahan | d 23 Jun 1966 | b 1860 | ||
| | | | | |||
| | | | | |||
| Bertha Ellen Badgett | ||||
| b 13 Aug 1926 | | | |||
| d 27 Aug 1975 | ||||
Source: Rosa Lee Downey notes, 16 June 1983, p 108.