Newman begins postgraduate studies in Philosophy at the Catholic University of Louvain and is awarded a Doctorate in Philosophy there in 1951. After that he takes up studies in Sociology at the University of Oxford for four years before taking up a teaching post at Queen’s University, Belfast.
In 1953 Newman is appointed Professor of Sociology at St. Patrick’s College, Maynooth, succeeding Peter McKevitt. It is an institution he remains within, and eventually leads with distinction, until he is appointed Bishop of Limerick in May 1974. He publishes two books about the college: Maynooth and Georgian Ireland (1979) followed by Maynooth and Victorian Ireland (1983).
Newman arrives in Limerick with a strong reputation for reform having served a number of years as President of Maynooth where he adapted and shaped the college to the new challenges of the 1970s. His academic background in sociology gives him an informed understanding of the changing dynamic in Irish life, especially rural life which he has been writing about since the early 1960s, especially the dangers of depopulation.
Newman often makes comment on national matters particularly about church-state relations which has been his special area of study for over 20 years. He takes what might be called a broadly ‘conservative’ approach which, as time goes on, jars with wider public opinion especially as Ireland faces a number of constitutional referenda in the 1980s. At least one modern author has quoted the epithet alleged to have been conferred on Newman by Conor Cruise O’Brien, The Mullah of Limerick, for articulating a neo-conservative position more commonly associated with the United States.
Newman’s later years are dogged by periodic bouts of ill-health and he dies in office on April 3, 1995 of hepatoma. He is buried in St. John’s Cathedral, Limerick. He is the subject of many obituaries not least because of his extensive public statements in his years as Bishop of Limerick. The Tablet suggests he was most “well known for his conservatism and taste for controversial remarks” before quoting the homily by Cardinal Cahal Daly that “he seemed to have a strange sense of inadequacy; and, for one who was so lovable, he seemed to have difficulties in believing that others respected and admired and indeed loved him.” The Irish Times obituary says he was a man “who kept fighting the battles of long ago.”
Newman is succeeded as Bishop of Limerick by Bishop Donal Murray.
Limerick City Library holds an extensive set of newspaper articles about Bishop Jeremiah Newman which have been made available online.