1961: Ordained
1961-1964: St. John the Baptist, Haverhill, MA (BO)
1965-1968: St. Mary’s, Foxboro, MA
1969-1970: St. Raphael’s, Medford, MA
1971-1972: El Toro, Santa Ana, CA
1973-1976: Military and V.A. Chaplain, U.S. Navy, Alameda, CA (OAK)
1977-1978: Chaplain, USMC
1979-1990: Military Chaplain
1991-1996: Awaiting Assignment
1995-2006: On Duty Outside the Diocese
2007-2013: Unknown
2013: Died (5/21/2013)
Notes: Fr. Gerard T. McMahon was a military chaplain from the Archdiocese of Boston who worked in the Diocese of Oakland in the mid-1970s. In May 2006, McMahon pleaded guilty to rape and indecent assault on a girl in Foxboro, MA in 1967-1970. He was sentenced to a lifetime of probation, which was to be served in Florida.