Devon_Preparatory_School--Cardinal_John_O'Connor

Devon Preparatory School is a Catholic all-male college preparatory school in Tredyffrin Township, Pennsylvania, in the United States, with a Devon postal address. Founded in 1956 by Piarists, it is divided into a middle school (grades 6–8) and an upper school (grades 9–12), both located on the same 20 acres (8.1 ha) campus. The school operates independently under the auspices of the Roman Catholic Archdiocese of Philadelphia.