Greetings, I am working on the Donlon family name as well. Here is a brief listing of family. I will have a more thorough list once my software has been recoverd.
Bridget Haverty would be my great grandmother. She married Patrick Costello and they had the following children:
Patrick Costello (married Nora Bourke) Mary Costello Margaret Costello (married Patrick Burke) Delia Costello (married Thomas White) Catherine Costello (married William Graham) Michael Costello Nora Costello (married Angus McPherson) EllenCostello (married Thomas Donnellan or Donlon) Ellen and Thomas had the following children: Dell Donlon (married Bernard McNulty), Patrick Donlon (married Margaret McCluskey), Peter Donlon (married Mary Finnegan) , Catherine Donlon (married Joseph McFarlane), Mary Donlon (married John Flaherty), Helen Donlon (married John Crowley), Margaret Donlon (married John Kearney), Sarah Donlon (married Luke Finnegan), Thomas Donlon (married Ann O'Meara) Sarah Costello (married Patrick Knight)