IHS THIS STONE WAS ERECTED BY JOHN MCMAHON IN MEMO RY OF HIS GRANDFATHER TERENCe MCMAHON DEPd LIFE JUNE 1ST 1773 AGED 85 YEARS ALSO HIS FATHER AND MOTHER OF KNOCTANCUISLAN DEP LIFE NOV 14 1786 AGED 65 LORD HAVE MERCY ON THEIR SOULS AMEN