This is really an update. It appears I have posted incorrect information concerning Patrick Maroney. The correct Patrick has a J. middle inital not H. as printed in his sister Margaret's obit. Patrick J. Maroney lists his mother as Lucy, not Ellen, as Patrick H. did. That is the linking clue since all the other Maroneys list their parents as Michael Maroney and Lucy Killeen.
Patrick was born around April 1866 in Ireland and immigrated to Boston around 1890. He married Delia Downes on November 29, 1893 in Boston, Massachusetts. This Downes connection could be an important factor in tracing these Maroneys because Margaret's marriage witness was a Bridget Downes, whose mother is listed as Susan Maroney in marriage information. Delia apparently (Bridget does not appear to be a sibling although we do not know, at this point, what Delia's mother's name is-her father is listed as John Downes and Bridget).
The Patrick Maroney's appear to have had only one living child ( Delia lists she has two children in the Census) Mary I. Maroney born January 1898. I can not find her beyond 1930 but she appears to have been unmarried in her early thirties.
Delia had two traceable brothers, Henry Downes who married a Mary Rogers in Cambridge, Massachusetts on February 7, 1900. They appear to have had 4 children, John Augustine(6/1/1908), Henry Joseph Downes, who appears to have gone under the name Joseph Downes (3/28/1902), James T. Downes(12/15/1906) who appears to have died in Roslindale, Massachusetts in 6/28/1996 and Beatrice Rose Downes (8/3/1910) who appears to be living with her uncle and aunt, Patrick and Delia Maroney in 1930. There is a second brother, James,who was living with the newly wed Maroneys in 1900 Census. All seem to have immigrated in the 1890s.
Delia Maroney appears to have died November 23, 1946 in Boston. The Boston directory indicates that Patrick had died before her.
Does connect with any family Downes or Maroney? I am beginning to believe that the families-Curtins, Maroneys, Daleys and Downes may have all originated around western Clare-around Miltown Malbay area.