_Moritz Moses WARBURG _______+
                                                   | (1838 - 1910)               
                             _Paul Moritz WARBURG _|
                            | (1868 - 1932) m 1895 |
                            |                      |_Charlotte Esther OPPENHEIM _
                            |                        (1842 - 1921)               
 _James Paul WARBURG _______|
| (1896 - 1969) m 1918      |
|                           |                       _Solomon LOEB _______________
|                           |                      | (1828 - 1903) m 1862        
|                           |_Nina J LOEB _________|
|                             (1870 - 1945) m 1895 |
|                                                  |_Betty GALLENBERG ___________
|                                                    (1834 - 1902) m 1862        
|
|--Andrea Swift WARBURG 
|  (1922 - 2009)
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|_Katharine Faulkner SWIFT _|
  (1897 - 1993) m 1918      |
                            |                       _____________________________
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