Mark M. Friel
- 1963: Ordained
- 1964: St. Mary’s, East Arcade, NY
- 1965-1972: Assumption, Lackawanna, NY
- 1973: St. John Vianney, Orchard Park, NY
- 1974: Assumption of the Blessed Virgin Mary, Lancaster, NY
- 1975-1977: Our Lady Church, Lancaster, NY
- 1978-1981: Infant of Prague, Cheektowaga, NY
- 1982-1986: Saints Peter and Paul, Jamestown, NY
- 1987: Awaiting assignment
- 1988-1989: St. Mary of the Cataract Church, Niagara Falls, NY (in residence)
- 1990-2003: Niagara Falls Memorial Medical Centers, Niagara Falls, NY; St. Mary of the Cataract Church, Niagara Falls, NY
- 2004-2017: Sheehan Residence for Priests, Buffalo, NY (330 Linwood Ave., Buffalo, NY 14209)
- 2018: Unknown
- Notes: On March 20, 2018, the Diocese of Buffalo included Fr. Mark M. Friel on its list of priests who have been accused of child sexual abuse. The diocese did not disclose any information regarding the allegations, Fr. Friel’s prior assignments, or his current location. As of 2017, Fr. Friel was believed to be a retired priest living in Buffalo, New York.