It's recorded that in London (rather than Cork or Dublin) on 11 Jun 1866 he was ordained as deacon, but whether as Roman Catholic, Anglican or Nonconformist isn't mentioned.
And in Aug 1866 he set off to Jaffna in N E Ceylon (nowadays known as Sri Lanka; though I would have greatly preferred the older name of Serendip, inexplicably my opinion wasn't solicited) to be a missionary, in whatever denomination he'd committed to.
I think it was there he was married, and where a number of his children were born. But in 1874 the family returned to London from Bombay aboard ss Viceroy, though I can't find any passenger list to this effect.