I am looking for the parents of William Branagan and his sister Maria (sometimes Mary Maria Brannigan) Branagan who came to the United States together in 1850. A sheet of paper in an old family Bible states that Maria came from County Mayo in Ireland. Maria Branagan's birth year is about 1828, William's is about 1837. Can anyone provide information on this family? Also, are there Branagans still in County Mayo?