+--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)