Donald W. Becker
- 1967: Ordained
- 1968: St. Mark, Rushford, NY
- 1969-1970: Assumption of the Blessed Virgin Mary, Lancaster, NY
- 1971-1974: St. Bonaventure, West Seneca, NY
- 1975-1979: Saints Peter and Paul, Hamburg, NY
- 1980-1981: Nativity Church, Orchard Park, NY
- 1982-1984: St. Stephen Church, Grand Island, NY
- 1985-1989: St. Agatha, Buffalo, NY
- 1990: Unknown
- 1991: Awaiting assignment
- 1992-2002: St. Mary, Batavia, NY
- 2003: Absent on leave
- 2004-2005: Retired (P.O. Box 48, Java Center, NY 14082)
- 2006-2012: Retired (32 Green Meadow Dr., Orchard Park, NY 14127)
- 2013-2016: Retired (13831 Eagle Ridge Lakes Dr. #103, Fort Myers, FL 33912)
- 2017-2018: Unknow
Notes: Fr. Donald W. Becker was placed on medical leave in 2002 in the wake of allegations of child sexual abuse. In 2018, one man alleged that Fr. Becker sexually abused him as a child at St. Bonaventure and two other men have alleged that Fr. Becker sexually abused them as children at Saints Peter and Paul. After the first three men came forward, several other men reportedly accused Fr. Becker of sexually abusing them as children. Fr. Becker has denied all allegations of child sexual abuse. On March 20, 2018, the Diocese of Buffalo included Fr. Becker on its list of priests who have been accused of child sexual abuse. The diocese did not disclose any information regarding the allegations, Fr. Becker’s prior assignments, or his current location. As of 2016, Fr. Becker was believed to be a retired priest residing in Fort Myers, Florida.