You could try writing to the 5 McCaffery's in the Fermanagh telephone book. It appears they only have Initials.
B. McCaffery, Doon, Fermanagh
J. McCaffery, Tempo, Enniskillen
J. McCaffery, Cavanaleck,Enniskillen
K. McCaffery, Enniskillen
T. McCaffery, Ballylucas, Enniskillen
The british telephone book for Northern Ireland has the complete addresses and postal codes. A few stamps and you never know who you might get help from.
I don't know how many would be in Indiana, Ohio or Mass, but worth a look in those telephone directories.