I already mentioned, in the thread started by OP in the Kildare section, that it is unlikely that John Melville was from there - too far, how would they have met?
Instead, there is a candidate for him in an adjacent/next-door parish to Kiltullagh - Loughrea.
According to RootsIreland, John "Mullavil" was baptized there in 1812.
Of course, we can only "look under the lampposts". If John was actually from Kiltullagh then there will be no record.