Here's what I've come up with for the Irish town names:
I've never spoken or heard Irish language before, though..
Aileach = "Aye-
lake" spoken "Ayelake"
Cruaghan = "
Kru-gan" spoken "Krugan" = Cruawhan
Rath Celtair = "rath-
Selter" spoken "Rath Selter" = Rath Kelter
Temair = "Te-
mer" spoken "Temmer"
Dubh Linn = I have no idea

= Dublin
Caiseal = "ke-
Shel" spoken "Keyshel"
Maistiu = My Stew
Ceall Cainnigh = "
Shal-kenny" spoken "Shalkenny" = kyle caney
Am I correct, incorrect; how do you think they are pronounced? How would you pronounce the names of other towns?