Sorry about that Shellyesq -since I had started that thread not knowing about Patrick McCann and since I was technically asking a different question, I thought I should start a new thread - I'll remember that advice for future, thanks

I don't know anything further about Patrick McCann I'm afraid - the info I received on here was the first time I heard about him! There is no mention of him on the 1901 census in Ireland so I would guess he was at least 16 or 17 by that time and therefore his date of birth would be mid 1880s or so?
Thanks for that merjones - thats a possibility alright - I'm learning that dates are not set in stone in genealogy!
Finally, my Dad has an idea that Norah died not long after she arrived in the U.S. - about 6/7 years after her arrival so 1936 or so - don't know whether that's true or not though.
Thanks again for all your help and sorry again shellyesq