In the graveyard of Couraganeen Church (Catholic church, built 1812), Bourney or Bournea Parish, Co. Tipperary (about 5 miles south of Roscrea) is the grave of Edmond Kirwan: "Edmond Kirwan died Oct. 4, 1837 55 Yrs. Wife Mary Lahey." This would make Edmond's birth year 1781 or 1782, I think, even allowing for the switch from the Julian to the Gregorian calendar.