_Isaac ISON ____________+
                                                        | (1810 - 1880) m 1832   
                             _Dock L ISON ______________|
                            | (1843 - 1932)             |
                            |                           |_Amelia Ann HAMILTON ___+
                            |                             (1811 - 1880) m 1832   
 _Benjamin S Franklin ISON _|
| (1870 - 1940)             |
|                           |                            _Benjamin S HAMILTON ___+
|                           |                           | (1826 - 1880) m 1847   
|                           |_Teresa HAMILTON __________|
|                             (1847 - 1909)             |
|                                                       |_Frances Jean WILLIAMS _+
|                                                         (1828 - 1848) m 1847   
|
|--Rufus Anthony ISON 
|  (1913 - 1975)
|                                                        _John W FERGUSON _______+
|                                                       | (1830 - 1875)          
|                            _William Richard FERGUSON _|
|                           | (1850 - 1915)             |
|                           |                           |_Anna FYFFE ____________+
|                           |                             (1828 - 1904)          
|_Mary Ellen FERGUSON ______|
  (1873 - 1926)             |
                            |                            _Lewis Parker TODD _____+
                            |                           | (1815 - 1878)          
                            |_Mary Jane TODD ___________|
                              (1853 - 1935)             |
                                                        |_Nancy HOWES ___________+
                                                          (1817 - 1891)