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It appears the RC parish records for Kilfidane do not begin until 1868 which is too late for your interests. I looked at the 1824 Tithe Applotment listings for Kilfidane parish http://www.clarelibrary.ie/eolas/coclare/genealogy/tithe_applot/kilfidan... and there are a couple Shaughnessy records and one Finucane record although none in Coolmeen.
You can look at the library genealogy resources for possible leads but you may want to consider autosomal DNA testing. Possibly you will match someone who has more info on your family from Kilfidane parish.
co clare library genealogy