_____________________
                                            |                     
                       _____________________|
                      |                     |
                      |                     |_____________________
                      |                                           
 _William J. MARTIN __|
| (1848 - 1931) m 1875|
|                     |                      _____________________
|                     |                     |                     
|                     |_____________________|
|                                           |
|                                           |_____________________
|                                                                 
|
|--Lucille MARTIN 
|  (1903 - 1981)
|                                            _____________________
|                                           |                     
|                      _Samuel J. JOHNSTON _|
|                     | (1827 - ....) m 1849|
|                     |                     |_____________________
|                     |                                           
|_Martha A. JOHNSTON _|
  (1853 - ....) m 1875|
                      |                      _Robert L. COBB _____+
                      |                     | (1799 - 1859) m 1827
                      |_Mary M. COBB _______|
                        (1828 - 1866) m 1849|
                                            |_Ann C. LNU _________
                                              (1807 - 1879) m 1827