Thank you for your post to the Ireland Reaching Out message board and welcome to the site! We have a very knowledgeable local volunteer in that area and I will copy this post to her. I will let you know what turns up.
You might also want to check out the National Library of Ireland Catholic Parish Registers which are available online at the following link: https://registers.nli.ie/parishes/0630. You will note that that link is for Lisdoonvarna which is a neighboring parish of Kilshanny, Unfortunately, those registers are not available online.
You may also find the Clare Library website helpful for research. You can access their online catalogue through this link: http://www.clarelibrary.ie/eolas/coclare/genealogy/genealog.htm.
If you have any further questions, please let me know.