1811 - 1892 (81 years)
| Antonette Platt, < | |
| B: | 1856 |
| NY | |
| D: | Bef 1870 |
| Warren Nelson Platt | |
| B: | 1886 |
| D: | Yes, date unknown |
| Irving Voorhis Platt | |
| B: | Sep 1888 |
| D: | Yes, date unknown |
| Frederic Platt, < | |
| B: | Abt 1858 |
| NY | |
| D: | Yes, date unknown |
| Emily L. Rodman | |
| B: | Aug 1856 |
| New York, United States | |
| M: | 7 Aug 1882 |
| Kings, New York, United States | |
| D: | Yes, date unknown |
| Oliver S. Platt, (iii) < | |
| B: | Oct 1863 |
| NY | |
| D: | Yes, date unknown |
| John H. Platt, < | |
| B: | Jul 1868 |
| NY | |
| D: | Yes, date unknown |
| Charles Platt, < | |
| B: | Abt 1871 |
| NY | |
| D: | Yes, date unknown |
| Susan Platt, < | |
| B: | Abt 1875 |
| NY | |
| D: | Yes, date unknown |
| Emily C. Whitford | |
| B: | 31 Aug 1835 |
| Beaver Dams, Dix, Schuyler, New York, United States | |
| D: | 30 Mar 1917 |
| Walcott, Scott, Iowa, United States | |
| Oliver Platt, (ii) ^ | |
| B: | 1826–1834 |
| NY | |
| D: | Between 1880 and 1900 |
| Oliver D. Hopper | |
| B: | 13 Nov 1822 |
| Steuben, New York, United States | |
| D: | 23 Nov 1912 |
| Davenport, Scott, Iowa, United States | |
| Arathucy Wetherell | |
| B: | 1811 |
| New York, United States | |
| D: | 29 Feb 1892 |
| Catlin, Chemung, New York, United States | |
| Joseph Whitford | |
| B: | 1801 |
| New York, United States | |
| D: | 23 Dec 1870 |
| Catlin, Chemung, New York, United States | |
