My great grandfather was Daniel Snee, son of James Snee and (reportedly) Mary McNulty. As Daniel married, lived, and died in Coolaney, Co. Sligo, it is a good chance his parents lived there also. I have been unable to document whether his mother was or was not a McNulty but that is the info rec'd verbally from my family.
The Rooney connection is via Anne Toolan, Daniel's wife. Her sister, Mary, married John Rooney (all from Coolaney area). The had two dtrs (that I know of) -- Nellie who married Eddie Lynch, and Norah who I believe never married. Nellie and Norah both emigrated to NY City. As children my aunt and father visited them. Unfortunately, I don't have dates for these folks.