1844 - 1921 (77 years)
| Beatrice de Trobriand Post | |
| B: | 31 Dec 1877 |
| New York, United States | |
| D: | 19 Apr 1954 |
| Manhattan, New York City, New York, United States | |
| Robert Post | |
| B: | 1870 |
| New York, United States | |
| Edith Church Post | |
| B: | 7 Aug 1882 |
| Long Island, New York, United States | |
| D: | 13 Dec 1944 |
| Sheridan, Wyoming, United States | |
| William Post | |
| B: | 1869 |
| New York, United States | |
|
| Charles Alfred Post | |
| B: | 6 Jan 1844 |
| New York City, New York, United States | |
| D: | 26 Apr 1921 |
| Manhattan, New York City, New York, United States | |
| Marie Caroline Denis de Keredern de Trobriand | |
| B: | 15 Oct 1845 |
| Venezia, Veneto, Italy | |
| M: | 28 Oct 1875 |
| Manhattan, New York City, New York, United States | |
| D: | 5 Mar 1926 |
| Manhattan, New York City, New York, United States | |
