1802 - 1883 (80 years)
| George Platt, ^ | |
| D: | Bef 1891 |
| Edward Platt, ^ | |
| D: | Bef 1891 |
| Katherine Elois Goldthwaite | |
| B: | Nov 1897 |
| Kings County, New York, United States | |
| D: | Jan 1986 |
| Bellport, Suffolk, New York | |
| Edgerton L Miller | |
| B: | 11 Oct 1897 |
| New York | |
| M: | 7 Jun 1922 |
| New York City, New York, USA | |
| D: | Mar 1974 |
| Reseda, Los Angeles, California | |
| Henry Tilden | |
| B: | 1919 |
| New York | |
| D: | Yes, date unknown |
| Uranice Platt Goldthwaite | |
| B: | Dec 1891 |
| Suffolk County, New York, United States | |
| Isreal Tilden | |
| B: | 3 Sep 1887 |
| Huntington, Suffolk, New York, United States | |
| M: | 5 Feb 1918 |
| Kings, New York, United States | |
| D: | 1 Apr 1986 |
| Bellport, Brookhaven Town, Suffolk, New York, United States | |
| Francis A. Platt | |
| B: | Abt 1862 |
| NY | |
| D: | Aft 1930 |
| Henry Mcintire Goldthwaite | |
| B: | Apr 1862 |
| Kings County, New York, United States | |
| M: | 1889 |
| Suffolk County, New York, United States | |
| D: | 1927 |
| Katherine Gerard Platt | |
| B: | 3 Mar 1859 |
| Bellport, Suffolk, New York, United States | |
| D: | 28 Dec 1892 |
| Bellport, Suffolk, New York, United States | |
| Henry Weeks Titus Post | |
| B: | 25 Jul 1855 |
| New York City, New York County, New York, United States | |
| M: | 29 Jan 1875 |
| D: | 3 Aug 1936 |
| Suffolk, New York, United States | |
| Charles Silas Platt | |
| B: | 1 Jan 1826 |
| Suffolk, New York, United States | |
| D: | 15 May 1915 |
| Bellport, Suffolk, New York, United States | |
| Urania Mills Gerard | |
| B: | 14 Dec 1836 |
| Bellport, Suffolk, New York, United States | |
| M: | Abt 1858 |
| New York, United States | |
| D: | 8 Apr 1912 |
| Bellport, Suffolk, New York, United States | |
| Sarah Platt, ^ | |
| B: | Abt 1830 |
| D: | CHILDHOOD |
| Mary Platt, ^ | |
| D: | Bef 1891 |
| 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 |
| Oliver Platt, (ii) ^ | |
| B: | 1826–1834 |
| NY | |
| D: | Between 1880 and 1900 |
| Emily C. Whitford | |
| B: | 31 Aug 1835 |
| Beaver Dams, Dix, Schuyler, New York, United States | |
| D: | 30 Mar 1917 |
| Walcott, Scott, Iowa, United States | |
| Timothy Platt | |
| B: | Abt 1830 |
| D: | CHILDHOOD |
| John Platt, ^ | |
| B: | 1837 |
| New York, United States | |
| D: | Abt 1891 |
| Margaret Napier | |
| B: | Abt 1837 |
| M: | 6 Jul 1861 |
| Liverpool, New South Wales, Australia | |
| Sarah B. Hallock, ^ | |
| B: | Abt 1868 |
| NY | |
| D: | Yes, date unknown |
| Sarah B Hallock | |
| B: | May 1869 |
| New York, United States | |
| D: | 28 Jun 1932 |
| Harrisburg, Dauphin, Pennsylvania, United States | |
| Isabel Platt, ^ | |
| B: | 25 Sep 1840 |
| New York, United States | |
| D: | 22 Aug 1926 |
| Harrisburg, Dauphin, Pennsylvania, United States | |
| Charles Hallock, ^ | |
| B: | Mar 1833 |
| New York, United States | |
| Ezra Platt, ^ | |
| B: | Between 1844 and 1846 |
| NY | |
| D: | Yes, date unknown |
| Jennie E Platt | |
| B: | Abt 1846 |
| NY | |
| D: | Yes, date unknown |
| Ezra M Platt | |
| B: | 1846 |
| New York, United States | |
| Jennie E Platt | |
| B: | 11 Jan 1846 |
| New York, United States | |
| D: | 15 Aug 1922 |
| Washington, New York, United States | |
| Oliver Platt | |
| B: | 1864 |
| New York, United States | |
| Fred William Platt | |
| B: | 3 Feb 1858 |
| Setauket, Suffolk, New York, United States | |
| D: | 24 Mar 1930 |
| Brooklyn, Kings, New York, United States | |
| Charles Platt | |
| B: | 1871 |
| New York, United States | |
| D: | 5 Mar 1913 |
| Brooklyn, Kings, New York, United States | |
| John Platt | |
| B: | 1868 |
| New York, United States | |
| Henry C Platt | |
| B: | 1861 |
| New York, United States | |
| Antonette Platt | |
| B: | 1856 |
| New York | |
| D: | Yes, date unknown |
| Susan Platt | |
| B: | Abt 1875 |
| Brooklyn, New York, United States | |
| D: | Yes, date unknown |
| Oliver Platt | |
| B: | 1835 |
| Huntington, Suffolk, New York, United States | |
| Emily Caroline Snow | |
| B: | 1836 |
| New York, United States | |
| D: | 31 Mar 1916 |
| Kings, New York, USA | |
|
| Oliver Platt, (i) ^ | |
| B: | 9 Jul 1802 |
| Huntington, Suffolk, NY | |
| D: | 23 Jun 1883 |
| {Fire Place (now Brookhaven), Brookhaven, Suffolk, NY} | |
| Huldah Hand, ^ | |
| B: | 1 Aug 1804 |
| New York, United States | |
| M: | Abt 1825 |
| United States | |
| D: | 23 Dec 1871 |
| {Fire Place (now Brookhaven), Brookhaven, Suffolk, NY} | |
