The John Carroll School
It is located in Bel Air, Harford County, Maryland, United States in the Roman Catholic Archdiocese of Baltimore.In the early 1960s Lawrence Shehan decided to build an Archdiocesan Catholic high school on an 87-acre (350,000 m2) site in Bel Air.The John Carroll School opened to 202 freshmen on September 9, 1964, under the leadership of Raymond Wanner.From its earliest days, the school was run both by clergy and lay people.[citation needed] The school is named after John Theodore Carroll, the first Catholic bishop and archbishop in the United States, serving as the ordinary of the Roman Catholic Archdiocese of Baltimore.