


| Father | Joseph Anthony Constant (10 March 1806 - 18 March 1860) |
| Mother | Eliza Sands Sinclair (1815 - 1 June 1885) |
| Record Created: 10 August 2011; Last Edited: 10 August 2011 |
| Person ID | 2979 |
| Name | William Sinclair Constant |
| Gender | Male |
| Born | 5 March 1836 in New York1 |
| Married | 4 October 1865 in Glens Falls, Warren County, New York to Mary Fuller Allen1 |
| Died | 8 May 1898 in New York, New York1 |
| Buried | in Green-Wood Cemetery, Brooklyn, Kings County, New York1 |
| Spouse 1 |
| Born | 9 August 1844 in New York, New York |
| Married | 4 October 1865 in Glens Falls, Warren County, New York to William Sinclair Constant |
| Died | 25 April 1881 in New York, New York |
| Children | of William Sinclair Constant and Mary Fuller Allen: |
| 1. |
| Born | 17 August 1866 |
| Died | 1 March 1944 |
| 2. |
| Born | 11 January 1868 |
| Died | 2 August 1897 |
| +3. |
| Born | 12 September 1871 |
| Married | December 1900 in Brooklyn, Kings County, New York to Marie Isabelle Talbot-Peterson |
| Died | 2 November 1933 |
| 4. |
| Born | 9 June 1872 |
| Married | 3 September 1902 to Anna Bothfeld |
| Died | 1 December 1942 |
| 5. |
| Born | 29 March 1874 |
| Died | ca. 1941 |
| 6. |
| Born | 7 July 1877 |
| Died | 1966 |
| 7. |
| Born | 7 July 1877 |
| Died | ca. 1877 |
| 8. |
| Born | after 1877 |
| Died | ca. 1878 |