Please find below a link to a conversational Irish-English phrase book written for the Waterford Branch of the Gaelic League by my great grand-uncle James Lucey Ahern in 1901. Learners of Cork Irish may find it interesting.

James Lucey Ahern (1869-1949) was born in Béal Átha'n Ghaorthaidh (Gaeltacht Mhúscraí). He was a professor of the Irish Language and a member of the executive of the Gaelic League in Dublin where he joined Douglas Hyde, Eoin MacNeill and Padraig Pearse. I wonder if he crossed paths with PUL?

https://archive.org/details/leaarmioncaintei01aher

I also found this quote by him..

‘Davis (Thomas) knew not a word of Irish and, so far as is known, made no attempt to learn it. Even at the present day it is a noticeable fact that the most enthusiastic advocates of the revival of the language are those who are completely ignorant of it and make no effort even to acquire a few salutations, while those who are native speakers, or who have studied it closely, are not so enthusiastic’.

Well, I'm sure he had good Irish, but he may have been influenced by pre-PUL notions of what good Irish was. on the 2nd or 3rd page there is this: atá áthas mór orm. PUL was insistent that "atá" may have been what they said 400 or 500 years ago, but that tá was the form in modern Irish...

It would be interesting if you could find out any connection between Aherne and PUL. Does your family have any letters he was sent?

Unfortunately not. Yes it would be very interesting. From what I gathered from my grandmother, his interest in the language waned as he grew older. He saw the language being hijacked for political purposes. He was a pacifist.

Well, he was undoubtedly right on that point. I haven't come across other Ahernes in Múscraí literature. I wonder what part of Ireland that surname is from?

Yes I don't think it's a very common name in the Múscraí area. It's quite common in Munster though. There are still Aherns related to us in the area. They have a farm near Guagán Barra. Ó Luasa was his mother's maiden name - much more common in Múscraí! She taught in the national school in Béal Átha an Ghaorthaidh.

You have a fascinating connection to Múscraí!