Simon Platt, tailor of Ware, Hertfordshire, buried 12 Apr 1594, m.18 Jul 1558 Elizabeth.  Her will was dated 18 Jul 1598, and she was buried 21 Jul 1598, age 66.  The will of "Symonde Platt of Weare, co. Hertford, tayler" was dated 28 March 1594 and proved 15 May 1594.
. 1. Alice Platt (bapt.22 Sep 1559)
. 2. Joan Platt (bapt.30 Nov 1561) died young, but may have married John Sawford
. 3. John Platt (bapt.25 Feb 1562/3)
. 4. Robert Platt (bapt.28 May 1565)
. 5. Agnes Platt (c.1567)
. 6. Richard Platt (bapt.19 May 1569) died young
. 7. Elizabeth Platt (bapt.22 May 1571) died young
. 8. Sarah Platt (bapt.21 Aug 1575)
. 9. George Platt (bapt.13 May 1582, probably about 10 years of age)

Richard Platt (born 28 Sep 1603; bapt.6 May 1604 at Ware), married 26 Jan 1628/9 Mary Wood (bapt.10 Nov 1605 at Roydon, Essex) daughter of John Wood (1578-1635) and Jane (1582-1649) of Hertfordshire.  Richard and Mary left England 31 May 1637 and settled in Quinnipiac, Connecticut (renamed New Haven Apr 1638), and was one of the founders of Milford in 1639. She was buried 24 Mar 1675. He died before 13 Feb 1684/5.  Richard willed Bibles to his 24 youngest grandchildren.
. 1. Mary Platt (1629-17Jun1669) m.3May1651 Luke Atkinson; m.3Jan1666/7 Thomas Whitmore
. 2. John Platt (bapt.1 Nov 1631-6 Nov 1705) m.6 Jun 1660 Hannah Clark, or Norwalk, CT
. 3. Isaac Platt (10 Apr 1633-31 Jul 1691) m. Elizabeth Wood (1646-1676) dau Jonas
. 4. Samuel Platt (bapt. 9 Dec 1634, buried 15 Sep 1635)
. 5. Sarah Platt bapt.11 Sep 1636-15 May 1670) m(1) Thomas Beach (d.1662) m(2) Miles Merwin
. 6. Epenetus Platt (12 Jul 1640-Sep 1693) m. Mar 1667 Phebe Wood (1649-1697 dau Jonas
. 7. Hannah Platt (bapt.1 Oct 1643-aft1702) m. Christopher Comstock (c1644-1702)
. 8. Josiah Platt (1645-1Jan 1724/5) m.2 Dec 1669 Sarah Canfield (c1651-1725) 
. 9. Joseph Platt (bapt.1 Apr 1649-bef.21 Mar 1703/4) m.5 May 1680 Mary Kellog (1662-1704)

Captain Epenetus Platt (12 Jul 1640-Sep 1693) surgeon, married Mar 1667 Phebe Wood (1649-1697), daughter of Jonas "Oram" Wood (1614-12 Jun 1689) and Elizabeth Strickland (or Conklin)  Jonas lived in Huntington Long Island, and his will mentions surgeons tools; Epenetus purchased land at Huntington, 24 Feb 1665/6.  In 1673, after the Dutch recaptured New York, he and four other delegates petitioned the Dutch to not require a pledge of allegiance, but to allow their good behavior to suffice.  The British retook New York in 1674.  In 1681, Epenetus, his brother Isaac, and three others were imprisoned by Gov. Andrus of New York Colony for attending a meeting of delegates asking "a redress of grievances under his arbitrary rule."
. 1. Phoebe Platt (19 Mar 1668/9-1748) married John Tredwell
. 2. Mary Platt (11 Jan 1671/2) married Timothy Carle
. 3. Epenetus Platt (14 Apr 1674-1744) m(1) Hannah Marvin, m(2) Elizabeth Smith
. 4. Hannah Platt (23 Aug 1679) married Jacob Conklin
. 5. Elizabeth Platt (1 Mar 1681/2) m.14 Mar 1703/4 Jonathan Smith (9 Nov 1696-1744) son of
. . . Jonathan Smith (1641-1718) and Sarah Brewster
. 6. Jonas Platt (24 Apr 1684-1731) married Sarah Smith
. 7. Jeremiah Platt (25 Nov 1686-16 Oct 1754) married Hannah and/or Mercy
. 8. Ruth Platt (13 Jun 1688) married a Bryan
. 9. Sarah Platt (4 Feb1692/3-1728) married Isaac Brush (c1692-1758)

Major Epenetus Platt (14 Apr 1674-1744) married (1) Hannah Marvin; m.6 May 1703 Elizabeth Smith (c.1678) and lived in Huntington, Long Island, made Trustee 1699.  Member of the Colonial Assembly 1723-1737.  Will dated 1742 probated 1745.  One source lists Elizabeth Smith as a daughter of John Rock Smith, but no evidence is offered; and she is not listed by anyone else among his children.  The best current genealogy lists her parents unknown.
. 1. Epenetus Platt (27 Aug 1700-1772) married Sarah Scudder  m(2) Phebe Platt
. 2. Zophar Platt (1705-1792) m.19 Nov 1738 Rebecca Wood (c1712)
. 3. Uriah Platt (1706-1746) m.30 May 1727 Mary Smith (1706-1761)
. 4. Elizabeth Platt (1707-1759) m.23 Apr 1732 Micajah Townsend (1699-1781)
. 5. Solomon Platt
. 6. Phebe Platt (31 Aug 1710-18 Jan 1738/9) m.25 Aug 1727 Benjamin Treadwell (1702-1782)
. 7. (?) Mary Platt (d.aft.1774) m.15 Dec 1738 Timothy Treadwell (1713-1749)

Uriah Platt (c.1706-20 Feb 1746) m.30 May 1727 Mary Smith (11 Dec 1706-1761) daughter of Richard "Rock" Smith.  The 1755 Census listed slaves Waterford and Gin.
. 1. Margaret Platt (16 Aug 1728-10 Aug 1791) m.1744 Isaac Smith (1722-1795)
. 2. Epenetus Platt (25 Jul 1730-1777) m.12 June 1753 Catherine Lawrence 
. 3. Philip Smith Platt (14 Jan 1731/2-23 May 1801) married Elizabeth Smith daughter of Micah
. 4. Uriah Platt (5 Jan 1734-21 Jul 1803) m.27 Jan 1761 Sarah Treadwell (1740-1788)
. 5. Catharine Platt (26 Apr 1736-26 Sep 1736)

Margaret Platt (16 Aug 1728-10 Aug 1791) m.2 Jan 1743/4 Isaac Smith (9 Sep 1722-29 May 1795) They moved to Amenia, Dutchess Co, NY, in 1757 and settled on the "Square Farm," six miles north of Lithgow. He was one of the Justices for the Crown before the war. They had 11 children.
. . 1. Mary Smith (20 Oct 1744-10 Dec 1809) m.29 May 1762 Morris Smith, see below
. . 2. Jacob Smith (20Feb 1746-10 Feb 1810) m.12 Jul 1767 Rebecca Peters (10Nov1748-15Oct1805)
. . 3. Uriah Smith (9 Oct 1749-3 Aug 1773)
. . 4. Freelove Smith (17 Feb 1752-7 May 1827) m.16 May 1770 Uriah Mitchell
. . 5. Platt Smith (15 May 1754-4 Nov 1793) married Polly Miller
. . 6. Phoebe Smith (17 Oct 1756-4 Sep 1800) m.9 Mar 1777 Dr. Matthias Burnet Miller (1749-7 Feb  
. . . . 1792)  He died in Savannah, Georgia, attending victims of yellow fever, and died of the disease  
. . . . himself.  One of their sons was named Morris Smith Miller, born 30 July 1779.
. . 7. Elizabeth Smith (23 Feb 1759-14 Jul1832) married 1793 Dr. John Miller as his second wife
. . 8. Catherine Smith (23 May 1761-20 Sep 1826) m.17 Apr 1783 Jacob Bockée 
. . 9. Philip Smith (31 Jul 1763-9 Nov 1801) m.15 Jan 1789 Lucretia Miller (1 Jan 1768-22 Feb 1794),
. . . . m.19 Dec 1794 Catalina VanNess (6 Feb 1755-22 Sep 1833)
. 10. Isaac Smith (25 Jul 1767-10 Jul 1825) m.28 Jan 1794 Phoebe Lewis
. 11. Margaret Smith (14 Mar 1771-8 Oct 1792) married Dr. John Miller as his first wife

Margaret Platt (1728- 1791) m.1744 Isaac Smith (1722- 1795)

Margaret Smith (1763-1821) m.1780 Morgan Edwards (c.1750-1798)

Margaret Edwards (1789-1864) m.1821 Thomas Tate (1775-1838)

Thomas Edwards Tate (1821-1914) m.1845 Mary Vernon Cutrer (1825-1892)

Frances Mary Tate (1852-1881) m.1871 Walter Edwin Tynes (1848-1928)

Jeanne Marie Tynes (1878-1958) m.1913 Carson B Matthews (1874-1948)

Frances Mary Tate Matthews (1917) m.1949 Virgil Raymond Liptrap (1907-1977)

James Matthews Liptrap (1951)