After Father Manning was ordained a Catholic Priest for the Diocese of Cleveland in 1972, his pastoral assignments were at St. Luke Parish in Lakewood (1972-74) and St. Bartholomew in Middleburg Heights (1989-94). Between these assignments, Fr. Manning was a full time faculty member of Borromeo College and was part of the Administrative Team for Permanent Diaconate Program, from 1980 through 1984.
For 21 years he was the pastor of St. Vincent de Paul Parish in Cleveland until 2015. With all this experience, he was asked to be Adjunct Faculty Member at St. Mary Seminary and the Graduate School of Theology. In addition, Bishop Lennon called him to be Delegate to the Senior Clergy.
Father Manning has Academic Degrees from Borromeo College, St. Mary Seminary, the Graduate School of Theology and John Carroll University. With this background, he serves on many committees and boards and gives talks on the history of the church at several area Catholic schools and the Cleveland First Friday Club.
Father Manning published his Doctor of Ministry Dissertation: The Effect of the Cleveland Scholarship and Testing Program on the Catholicity of West Park Catholic Schools, 2007 and “The History of St Mary Seminary, 2012.