Hello:
There is a reference in the Feakle Lower baptism register of a Michael Guilfoyle born to Martin Guilfoyle and Peggy Bleach who was baptised on 11 November 1860. His sponsor was Mary Durack.
There isn't a matching Michael Guilfoyle in the Scariff parish register for 1859. The only Michael Guilfoyle noted is one who was born about 1870.. This man appears to have died in 1945 in Scariff.
Let me know if the first reference sounds as if it could match.
All the best,
Jane