Edward Cashel
                             |
                George Blennerhassett Cashel
                             |
  +--------------------------+--------------------------+
  |                                                     |
 Blennerhassett Cashel                         Edward Francis Cashel
  |                                                     |
  |                                    +----------------+-------------------+
  |                                    |                                    |
 Agnes Cashel (O'Mara)          Agnes Cashel (Garn)                Sarah Cashel (Berg)
  |                                    |                                    |
 Eithne O'Mara (Humphreys)     Mary Garn (von Konsky)             Elizabeth Berg (Fleek)
  |                                    |                                    |
 Richard Humphreys             Robert H von Konsky                 Robert D Fleek
  |                                    |
 Mark Humphrys                 Brian R von Konsky

Sources: Mark Humphrys and Robert Fleek
Married names are shown in parenthesis.
Not all siblings or offspring are shown in this tree.