1957
Pope Pius XII announces the formation of the Diocese of Rockville Centre and appoints the Most Reverend Walter P. Kellenberg, Bishop of Ogdensburg, NY as the first Bishop of the Diocese; Rockville Centre becomes the seat of the Diocese and St. Agnes Parish is designated St. Agnes Cathedral Parish.
St. Agnes purchases the Clinton Avenue School from the Village and it becomes St. Agnes Elementary School; Msgr. Quealy celebrates his 90th birthday and the part of College Place running from Village Avenue to Clinton is renamed by the Village of Rockville Centre as “Quealy Place” to honor the pastor