___________________________________
                                                                 |                                   
                                   _William Ferdinand ALEXANDER _|
                                  | (1845 - ....) m 1884         |
                                  |                              |___________________________________
                                  |                                                                  
 _Lionel Cecil William ALEXANDER _|
|  m 1924                         |
|                                 |                               _George Frederick Heriot LAFARGUE _+
|                                 |                              | (1836 - 1884) m 1859              
|                                 |_Edith LAFARGUE ______________|
|                                   (1862 - 1925) m 1884         |
|                                                                |_Gertrude COBB ____________________+
|                                                                  (1836 - 1897) m 1859              
|
|--Derek Malcolm ALEXANDER 
|  
|                                                                 ___________________________________
|                                                                |                                   
|                                  ______________________________|
|                                 |                              |
|                                 |                              |___________________________________
|                                 |                                                                  
|_Hopeful Merrison Rose HURRELL __|
   m 1924                         |
                                  |                               ___________________________________
                                  |                              |                                   
                                  |______________________________|
                                                                 |
                                                                 |___________________________________