_Thomas MARSHALL _____
                                                          | (1730 - 1802) m 1754 
                                   _John Curtis MARSHALL _|
                                  | (1755 - 1835) m 1783  |
                                  |                       |_Mary Randolph KEITH _+
                                  |                         (1737 - 1809) m 1754 
 _Jaquelin Ambler MARSHALL _______|
| (1787 - 1852) m 1819            |
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|                                 |_Mary Willis AMBLER ___|
|                                   (1766 - 1831) m 1783  |
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|                                                                                
|
|--Jaquelin Ambler MARSHALL 
|  (1829 - 1909)
|                                                          ______________________
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|_Eliza Letitia Steptoe CLARKSON _|
  (1798 - 1868) m 1819            |
                                  |                        ______________________
                                  |                       |                      
                                  |_______________________|
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