I am the Gr Gr granddaughter of Owen Finnegan and Mary McQuire. My Gr Gr Grandfather Owen came from County Armagh when he was a child. Owen and Mary McQuire lived in Dixon Illinois. They had 6 children. Their daughter Annie was my Gr Grandmother. Annie married Frederick W. Hatch. Annie and Frederick had 3 children Fred, Irene and Florence. Florence was my Grandmother. She married William C. Dempsey. They had 5 children. Their daughter Elizabeth is my mother. Is this possibly your Owen Finnegan?