John J. McMahon (bishop)

John McMahon was born in Hinsdale, New York, and graduated from Union High School in 1893.[1] He then attended St. Bonaventure's College Allegany, from where he obtained a Bachelor of Arts degree, and completed his theological studies at the Pontifical Urbaniana University in Rome.[1] He was ordained to the priesthood on May 20, 1900.[2] Upon returning to New York, he served as a curate in Jamestown and Buffalo before becoming pastor of Newfane.[1] He also served as assistant superintendent of diocesan schools and director of the Holy Name Society.[1]

On March 2, 1928, McMahon was appointed the fourth Bishop of Trenton, New Jersey, by Pope Pius XI.[2] He received his episcopal consecration on the following April 26 from Bishop William Turner, with Bishops Thomas Walsh and Edmund Gibbons serving as co-consecrators, at St. Joseph's Cathedral.[2] He was installed at St. Mary's Cathedral in Trenton on May 10, 1928.[1] After four years as bishop, McMahon died at age 57.