| b 1879, , Sevier, Tennessee | James Wellington McMahan | > | d 1938, | Robert McMahan | Rachel Calvert |
| James Peter McMahan | b 1794 | |||
| | b 22 Aug 1819 | Hulda Hatcher | |||
| William Peter McMahan | d 27 Mar 1870 | b 1794 | William Henderson | |
| |b 03 Nov 1854 | | | William Henderson | Elizabeth | |
| |d 27 Mar 1905 | Nancy L. Henderson | b 11 Feb 1786 | James Cannon | |
| | | b 13 Dec 1827 | Mary Catherine Cannon | Martha | |
| Charles Mack McMahan | d 30 Nov 1897 | b 09 Feb 1786 | ||
| |Alice Mae Henderson | | | |||
| | | | | |||
| Nancy Marousie 'Nannie' Henderson | ||||
| b 23 Aug 1857 | | | |||
| d 17 Feb 1932 | ||||
| 1 | < | James William McMahan | 2 | Harry Lee McMahan | 3 | < | Sara Kathryn McMahan |
Source: 'The Final Irony,' Katherine Lane Nichols, 1974, p 194. 'Sevier County, Tennessee and Its Heritage', 1994, p 262, 324.