Hello Margaret, I have a James Donegan who married Winifred Raftery. James's father was Dominick who was married to Honora. James and Winifred had Patrick, John, James, Delia and Kate. Thomas married Teresa Regan lived and died in Roscommon. They had 2 sons James and Patrick. Dominick Donegan died in Essex NJ.
I believe that James had a brother Roderick. Does this sound like it could be your family?
I look forward to hearing from you. (My Great grandmother was sister to Winifred Raftery Donegan)