the name "Kneen or Cruyn" was used for your original John Kneen (I pointed out that Creen was often seen where Kneen would later be used)
A Thomas Cruyn was buried in Patrick in 1800 - I suspect pronunciation was something like Creen hence the Craine found
There are will summaries for the John Kneen of andreas on MNB - not sure if helps tho but there does seem to be a long gap between marr + Eleanor