____________________________
                                                                 |                            
                                      _Nathaniel THAYER _________|
                                     | (1769 - 1840)             |
                                     |                           |____________________________
                                     |                                                        
 _Nathaniel THAYER Jr________________|
| (1808 - 1883)                      |
|                                    |                            _Christopher TOPPAN ________
|                                    |                           |                            
|                                    |_Sarah Parker TOPPAN ______|
|                                                                |
|                                                                |_Sarah PARKER ______________
|                                                                                             
|
|--Cornelia Van Rensselaer THAYER 
|  (1849 - 1903)
|                                                                 _Stephen VAN RENSSELAER III_+
|                                                                | (1764 - 1839) m 1783       
|                                     _Stephen VAN RENSSELAER IV_|
|                                    | (1789 - 1868) m 1817      |
|                                    |                           |_Margarita SCHUYLER ________+
|                                    |                             (1758 - 1801) m 1783       
|_Cornelia Patterson VAN RENSSELAER _|
  (1823 - 1897)                      |
                                     |                            _William BAYARD Jr__________
                                     |                           | (1761 - 1826)              
                                     |_Harriet Elizabeth BAYARD _|
                                       (1799 - 1875) m 1817      |
                                                                 |_Elizabeth CORNELL _________
                                                                   (.... - 1854)