Looking for Dooley or Hart

I am searching for family of William Dooley born between 1829-1835. I do not know names of parents or siblings. There is a history of names. Male descendants have been given the first names of either: William, Stephen or David Francis. The middle name or baptismal name of Clement has been repeated through generations.

William Dooley arrived in the United States prior to 1864. His port of entry is unknown however he settled in Chicago. A death certificate of his fourth-born son, David Francis Dooley, reports a birthplace of Cork, Ireland. The informant was David Francis Dooley’s niece. She was an orphan and lived with David Francis Dooley.

A family member believes the Dooley cam from West Meath, Meath or Kings counties.

William Dooley married Ellen Hart. Ellen Hart also from Cork. Ellen’s family is also unknown. Her immigration records have not been located.

I would appreciate any advice and/or assistance.

Thank you.

Linda Dooley