1966: Ordained

1966-1967: Bishop Mora Salesian High School, Los Angeles, CA

1967-1976: Salesian High School, Richmond, CA (OAK)

1976-1979: St. Francis Junior High School, Watsonville, CA

1979-1984: Salesian High School, Richmond, CA

1984-1986: Bishop Mora Salesian High School, Los Angeles, CA

1986-1989: St. Francis Youth Center, Watsonville, CA

1989-1991: Salesian High School, Richmond, CA

1991-2008: Salesians of Don Bosco, Foreign Missions/St. Augustine’s School, Lungi Sierra Leone, West Africa

2008-2011: St. Francis Youth Center, Watsonville, California; Our Lady Help of Christians, Watsonville, CA

2012-2013: St. Francis Central Coast Catholic High School; St. Francis Youth Center; Our Lady Help of Christians; Salesians of St. John Bosco Saint Francis Salesian Community; Vicars Forane; Presbyteral Council; Diocesan Consultors

2013-2014: Unknown

2014-2017: SS Peter and Paul

2018: Unknown

Notes: Fr. Mengon, a member of the Salesian order, worked at many Salesian schools throughout his career as a priest. In 2006, he was identified in two depositions alleging he had sexually abused youth at a Salesian Camp.