_____________________
                                               |                     
                         _Orme Bigland CLARKE _|
                        | (1880 - 1949) m 1905 |
                        |                      |_____________________
                        |                                            
 _Humphrey Orme CLARKE _|
| (1906 - 1973) m 1938  |
|                       |                       _Alfred ROOSEVELT ___+
|                       |                      | (1856 - 1891)       
|                       |_Elfrida ROOSEVELT ___|
|                          m 1905              |
|                                              |_Katherine LOWELL ___
|                                                                    
|
|--Charles Mansfield Tobias CLARKE 
|  (1939 - 2019)
|                                               _____________________
|                                              |                     
|                        ______________________|
|                       |                      |
|                       |                      |_____________________
|                       |                                            
|_Elisabeth Irene COOK _|
   m 1938               |
                        |                       _____________________
                        |                      |                     
                        |______________________|
                                               |
                                               |_____________________