Hi,
I don't know if I can help but my mother's name is Kirk and her uncle was Kirk Magee and her family comes from Inver, Donegal, and I think others are from Tyrone. My mother probably has some idea about the Magee link. Magee seems very common and I've no idea if the NI ones are all related - I've a friend Patricia Magee (from Belfast) and I know Ted Magee, who is the husband of a friend, Adele Ingram.
I came across your post just now by accident. I was looking up Sam Magee - an old time US musician and came across the name of his brother Kirk Magee on Wikipedia. I had a second uncle Kirk Magee so I did a google search for "Kirk Magee" for interest and your message appeared with /kirk/magee along with it.
Michael