I found this entry for a Michael Glynn in 1873 - might be worth checking out?
First name(s) Michael
Last name Glynn
Registration year 1873
Registered quarter/year 1873
Registration district Killadysert
Mother's last name (original) -
You could order a copy from the GRO and it should give the parents names and address - any queries you can email me at firstname.lastname@example.org