| Person | [Birth - Death] | Spouse |
|---|---|---|
| Asa Cossitt | [22 March 1754 - 30 January 1838] | Mary Cole |
| Elizabeth Warren Cossitt | [1 December 1857 - ?] | |
| Fanny Malone Cossitt | [25 April 1850 - ?] | |
| Franklin Dwight Cossitt | [9 September 1821 - 9 July 1900] | Lucretia Frances James Malone, Martha Louise More, Ada C. |
| Franklin Dwight Cossitt | [13 April 1854 - 10 May 1854] | |
| Franklin Dwight Cossitt | [4 December 1861 - 23 October 1911] | Margaret Amy Fox |
| Franklin Dwight Cossitt | [30 December 1886 - ?] | |
| Frederick Henry Cossitt | [4 December 1899 - ?] | |
| George Marshall Cossitt | [24 April 1890 - ?] | |
| Harry Rene Cossitt | [27 January 1897 - ?] | |
| James Lyman Cossitt | [7 January 1902 - ?] | |
| Jean Fox Cossitt | [12 April 1888 - May 1968] | Marshall Gilbert Miles |
| Maggie Booth Cossitt | [11 March 1852 - ?] | |
| Margaret Cossitt | [8 February 1893 - ?] | |
| Marion Cossitt | [31 March 1895 - ?] | |
| Martha Louise Cossitt | [24 April 1863 - ?] | |
| Mary Elizabeth Cossitt | [22 August 1846 - ?] | |
| Rene Cossitt | [1690 - 11 August 1752] | Ruth Elizabeth Porter |
| Rene Cossitt | [3 September 1722 - 21 March 1810] | Phoebe Hillyar |
| Rene Cossitt | [23 February 1796 - 9 July 1836] | Marietta Stannard |
| Richard Henry Cossitt | [24 August 1848 - 12 September 1860] |