McNally's from Cloonkeen Townland

My 2nd great-grandmother was Julia McNally.  She was born around 1835.  In the early 1850s she emigrated to New York.  She either married Peter Maley/Mally/O'Malley in New York of just before leaving Ireland--not sure which.  Through DNA testing matches, I am fairly confident she came from Cloonkeen Townland, Kilmeena Parish, County Mayo.  I have some indications that her mother's given name was Bridget; but again not too certain.  She and Peter settled in and around Scranton, PA; but in 1880 moved to Mason County, Illinois, where they spent the remainder of their lives.  I do note from Griffith's valuation that there are many McNallys and Maleys (and other variant spellings) in that area; but I can't tie Julia or Peter to any specific family.  Any help would be appreciated. Del Ritchhart (dritchh37@gmail.com).