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I searched the free site www.irishgenealogy.ie and located one small lead on Roger Kane. There was an 1845 narriage in Castleisland RC church and one of the witnesses was a Roger Kean. There were no Roger Kane/Kean baptismal records in Co. Kerry. Castleisland baptismal records start in 1823 so possibly Roger was baptized there before records are available.
Area - KERRY (RC) , Parish/Church/Congregation - CASTLEISLAND
Marriage of THOMAS BARRETT of NR and HONORA DALTON of NR on 20 February 1845
HusbandWifeNameTHOMAS BARRETTHONORA DALTONAddressNRNROccupationNRNRFatherNR BARRETTNR DALTON
Witness 1RICHARD MCAULIFFEWitness 2ROGER KEAN