Thank you for this background on Mary Delaney, Jim.
It's wonderful to hear memories of a singer like these from the man who met and recorded that singer.

'She had a large repertoire which she usually remembered on request, but each time the songs came out slightly differently'

That's something I noticed with many recordings of Travellers, many singers never sang a song the same way twice.
It's as if they don't have a fixed version of a song in mind, they put it together from stock phrases fitting the story on the spot each time they sing it.

I have heard Mary's version of "The Kilkenny Louse House", I think it's a great example of her sense of humor.
I'm sure it was quite the experience recording her.