Hi Stephan - I think I may be a distant cousin on Donegan side of family.My mother was Eileen Hanora, born in l9l6 to Roderick Donegan and Margaret Mitchell. They are buried in Granlahan Cemetery about 2 miles outside Ballinlough town. There are still Donegans in the vicinity but none living in town.
The name Dominick was a popular family name - my grandfather had a brother by that name and I heard of a couple of cousins with it also.
I am living in Ireland for last 25yrs. and have had occasion to visit up there.