Jerry, Good luck in your search. I am not likely from your family line either. My grandfather Hugh McGarrigle and his sisters Jenny and Maggie emmigrated to New York from Ballyshannon, County Donegal. Hugh followeed his sisters to NY and he probably arrived around 1890. Several other siblings stayed in Ireland, but none of the names you list are familiar. Their parents were Jane (nee Underwood) and John McGarrigle.
You might want to check in with the Donegal Historical Society at http://donegalhistory.com/http://donegalhistory.com/ By the way, their secretary is Una McGarrigle, a lovely woman . . . also not a relative of mine, but a dear friend.