+--Tristram Thomas  (1522-)
                  +--Edmond Thomas  (1545-28 MAR 1627)
                  |  +--Mrs. Tristram Thomas  (1522-)
               +--Tristan "Tristram" Thomas  (1580-18 JAN 1639/40)
               |  +-- Elizabeth  (1549-24 OCT 1587)
            +--Christopher Thomas  (10 FEB 1603/04-25 MAR 1670)
            |  +--Elizabeth Marsh  (1577-NOV 1662)
         +--Tristram "Tristan" Sr. Thomas  (20 SEP 1629-22 MAY 1686)
         |  +--Elizabeth Wid. Higgins  (1612-26 MAR 1697)
      +--Tristram "Tristan" Jr. Thomas  (1666-11 FEB 1745/46)
      |  +-- Elizabeth  (1630-)
   +--Simon Thomas  (10 JUL 1712-AFT. 8 MAR 1736/37)
   |  |  +--James Clayland  (ABT. 1650-7 NOV 1699)
   |  +--Judith Jane Clayland  (26 DEC 1674-1737)
   |     |     +--William Hemsley  (1607-)
   |     |  +--William Hemsley  (1633-1685)
   |     +--Elizabeth Hemsley  (1655-1677)
   |        +-- Judith  (1635-AFT. 26 FEB 1684/85)
+--John Sr. Thomas  (16 JUN 1743-18 NOV 1814)
|  |     +--Lewis Clothier  (1654-ABT. 1684)
|  |  +--Robert Clothier  (1680-26 SEP 1717)
|  |  |  |  +--Robert Knapp  (-ABT. 1682)
|  |  |  +--Susanna Knapp  (1658-)
|  |  |     +-- Eliza 
|  +--Mary (Clother) Clothier  (5 JAN 1709/10-6 AUG 1774)
|     |        +--Robert Kemp  (1583-)
|     |     +--Henry "Henrie" (Kempt) Kemp  (15 JAN 1608/09-)
|     |     |  +--Margery Newer  (1587-)
|     |  +--Robert Kemp  (14 OCT 1649-30 OCT 1702)
|     |  |  +-- Elizabeth  (1609-JAN 1657/58)
|     +--Jane Kemp  (1687-1723)
|        |     +--? Webb  (ABT. 1609-)
|        |  +--Edmund Webb  (1631-JAN 1684/85)
|        |  |  +-- ?  (ABT. 1611-)
|        +--Elizabeth Webb  (1657-ABT. 1711)
|           +-- Elizabeth  (1635-)
Elizabeth "Betty" Thomas  (26 DEC 1770-1806)
|           +--Michael Clark  (ABT. 1650-)
|        +--Christopher Clark  (AFT. 1645-)
|        |  +-- Margaret  (ABT. 1650-)
|     +--Francis Clark  (1676-1769)
|     |  +-- Elizabeth?  (1658-)
|  +--Francis Clark  (ABT. 1725-NOV 1799)
|  |  +--Cordelia Lankford  (1682-ABT. 1760)
+--Molly Clark  (19 JAN 1747/48-8 JAN 1840)
   |  +--Nicholas Stone  (1700-)
   +--Christina Stone  (1730-BET. 15 FEB 1794 - 1797)
      +-- Mary  (ABT. 1700-BEF. 6 JUN 1767)