The Diocese of Rockville Centre was split off from the Diocese of Brooklyn April 6, 1957. St. Agnes Cathedral is the seat of the Diocese of Rockville Centre. Walter P. Kellenberg, former Bishop of Ogdensburg served as first bishop of the diocese from 1957 to 1976. He founded the diocese's Catholic Charities office in 1957. Kellenberg was followed by Bishop John McGann, who retired in 2000 and died in 2002. The diocese was led briefly by Bishop James T. McHugh, who died of cancer on December 10, 2000. William Murphy served as the diocese's fourth bishop from 2001 to 2017. Murphy arrived in Long Island from his native Archdiocese of Boston, where he served as the archdiocese's vicar general. He was succeeded by John Barres on January 31, 2017.
Reports of sex abuse
By August 2019, 68 clergy who served in the Diocese of Rockville Centre were "credibly accused" of committing acts of sex abuse. Some were either convicted for their crimes or agreed to pay financial settlements. Former priest Robert E. Guglielmone, who was later appointed Bishop of the Roman Catholic Diocese of Charleston in South Carolina, was also revealed to have been named as a defendant in a sex abuse lawsuit in the state of New York and is accused of committing acts of sex abuse while serving in the Diocese of Rockville Centre. On May 8, 2020, New York Governor Andrew Cuomo extended the 2019 New York Child Victims Act's statute of limitation deadline to file sex abuse lawsuits from August 14, 2020 to January 14, 2021. On May 13, 2020, a Nassau County Supreme Court justice allowed pending lawsuits against the Diocese of Rockville Centre to proceed after rejecting claims that the New York Child Victims Act, which serves as the legal basis for the upcoming sex abuse lawsuits, violated due process.
Catholic Faith Network, formerly known as "Telecare" was founded in 1969 by Monsignor Thomas Hartman of the Diocese of Rockville Centre in New York. CFn's programming includes live religious services, talk shows, devotional programs, educational programming, entertainment, and children's programs. It also presents coverage of special events at the Vatican and of papal journeys. It serves subscribers in three states.
In 2012 the diocesan weekly newspaper Long Island Catholic switched to a subscription-based monthly magazine.
Catholic Charities of the Diocese of Rockville Centre began operating in 1957. In 1974, they opened a residence for the developmentally disabled in Valley Stream. As of 2019, there were thirteen such residences. A shelter for single mothers opened in 1968 and in 2009 expanded to include transitional housing. Catholic Charities is the one largest provider of affordable senior housing on Long Island, operating over 1,300 units.
