Dathai, I had a very quick look online in the Irish Newspaper Archives for Samuel's accident in 1859 and there is a note in the Freeman's Journal on Friday, December 09, 1859, p. 4: 'Fatal Accident – A man named Samuel O’Neill, aged about 25 years, while engaged at his work in the new church of St Saviour Dominick street, yesterday morning a piece of timber, fell and inflicted great injuries upon him. He was conveyed to Jervis Hospital, where he died in the course of the day.'