+--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-)