+--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-)