Cassin/Cashin, Feely, Morrissey, Raftis in Lemonstown, County Kilkenny

I have been reseaching the Cassin/Cashin family that lived in the townland of Lemonstown as tenants of William Morris Reade. Mary Cassin/Cashin is my great-great-grandmother and emigrated from Ireland in 1854 or 1855. I am confident that she lived in Lemonstown, as a biorgraphy of her that was published in the US when she reached the age of 100 states that as the place from which she emigrated. She is listed in Griffiths Valuation in Lemonstown and appears to have joint tenancies with Edmond Cashin and Mary Morrissey. Her husband, James Cashin, died in 1846. Mary and James had 11 children: Martin, Catherine, Ann, Julia, Ellen, Mary, Bridget, Margaret, Elizabeth, Michael, William (not in birth order). Martin emigrated 4-5 years before the rest of the family, and may have joined other Cassin/Cashin family members somewhere in the state of New York before moving to Mercer County, Illinois. According to Mary Cassin's biography, she and the other children joined him there in 1858. So, if their 1854-55 emigration year is correct, they also spent some time elsewhere, probably New York, after arrival in the U.S.A. Her obituary lists her maiden name as Feely. I haven't any information on her parents or, more generally, on the Feely family in Kilkenny. Catholic parish records recently made available on the National Library of Ireland website have allowed me to confirm the births of most of the children, and opened a mystery about Martin's birth - his baptism record indicates that his birth was illegitimate, his parents listed as Pat Cassion and Mary Feely. Not sure who Pat is, nor why he and Mary, apparently, had a child out of wedlock. Other families who lived in Lemonstown and had connections with the Cassins are Morrissey and Raftis.

I will be visiting Ireland in late June, early July this year, and I would like to find out in what cemetery James might be buried (understanding that there probably won't be a headstone), so I need to find out the cemetery most likely to have been used for those living in Lemonstown. I believe the Catholic parish is Dunamaggan. Would burial records exists somewhere locally? I will be in Kilkenny for several days and could do additional research, if I know where to look. Will will also be in Dublin for 3-4 days, so could conduct some research at the NLI.

I know that I already have a lot of information, and I'm not sure what else I can hope to find. Would love to hear from anyone who has connections to any of the families listed. Thanks for any help you can provide.