_Isaac PRESTON ______+
                                            | (1741 - 1810)       
                       _Isaac PRESTON ______|
                      | (1786 - 1849)       |
                      |                     |_Margaret LNU _______
                      |                       (1745 - 1800)       
 _Thomas PRESTON _____|
| (1805 - 1865) m 1830|
|                     |                      _____________________
|                     |                     |                     
|                     |_Sarah DOWNING ______|
|                       (1789 - 1856)       |
|                                           |_____________________
|                                                                 
|
|--Gilbert PRESTON 
|  (1838 - ....)
|                                            _Moses PRESTON ______+
|                                           | (1763 - 1842) m 1783
|                      _Isaac P PRESTON ____|
|                     | (1784 - 1864) m 1812|
|                     |                     |_Frances ARTHUR _____+
|                     |                       (1764 - 1844) m 1783
|_Rhoda PRESTON ______|
  (1818 - 1856) m 1830|
                      |                      _Shadrack SLONE _____+
                      |                     |                     
                      |_Mary Polly SLONE ___|
                        (1794 - 1884) m 1812|
                                            |_____________________