+--John Grubb 
         +--Henry Grubbe  (ABT. 1476-1556)
         |  +--Agnes Nicole 
      +--Thomas Grubbe  (1533-2 FEB 1616/17)
      |  +--Lady Joan Parr Radcliffe 
   +--Thomas Grubbe  (1581-2 FEB 1615/16)
   |  +--Agnes Jeffrey 
+--John Henry Grubb  (BET. 1610 - 1617-1667)
|  +--Susan Hart  (ABT. 1581-BET. 1613 - 1675)
John Grubb  (20 APR 1652-BET. 12 FEB 1706/07 - 10)
+--Helen Vivian  (1614-BET. 1668 - 1719)