Founding year: 1851
Address: Springside Chestnut Hill Academy, 500 West Willow Grove Avenue, Pennsylvania, 19118, United States
Founding year: 1851
Address: St. John's College High School, 2607 Military Rd NW Washington, Washington, 20015, United States
Founding year: 1851
Address: St. Joseph's Preparatory School, 1733 W. Girard Avenue, Philadelphia, Pennsylvania, 19130, United States
Founding year: 1851
Address: Notre Dame High School, 13645 Riverside Dr, Sherman Oaks , Alabama, 91423, United States
Founding year: 1851
Address: Notre Dame High School, 13645 Riverside Dr, Sherman Oaks, Alabama, 94002, United States
Founding year: 1851
Address: Bellarmine College Preparatory, 960 W Hedding St, San Jose, California, 95126, United States
Founding year: 1851
Address: Buffalo Seminary, 205 Bidwell Pkwy, Buffalo,, New York, 14222, United States
Founding year: 1851
Address: The Hill School, 860 Beech Street, Pottstown, Pennsylvania, 19464, United States
Founding year: 1851
Address: Cretin-Derham Hall, 550 South Albert Street St. Paul,, Minnesota, 55116, United States
Founding year: 1850
Address: The Gunnery, 99 Green Hill Road Washington, Connecticut, 06793, United States
Founding year: 1850
Address: Santa Catalina School, 1500 Mark Thomas Drive, Monterey, California, 93940, United States
Founding year: 1850
Address: San Domenico School, 1500 Butterfield Road San Anselmo, California, 94960, United States
Founding year: 1849
Address: Edgewood High School of the Sacred Heart, 2219 Monroe St, Madison,, Wisconsin, 53711, United States
Founding year: 1849
Address: St. Paul's School, 11152 Falls Road P.O. Box 8100 Brooklandville, Maryland, 21022, United States
Founding year: 1848
Address: Blair Academy, 2 Park St, Blairstown,, New Jersey, 07825, United States
Founding year: 1848
Address: Proctor Academy, 204 Main Street . PO Box 500 . Andover, New Hampshire, 03216, United States
Founding year: 1848
Address: Convent of the Sacred Heart, 1177 King Street, Greenwich,, Connecticut, 06831, United States
Founding year: 1847
Address: St. Mary's Episcopal School, 60 Perkins Extended Memphis, Tennessee, 38117, United States
Founding year: 1847
Address: Xavier High School, 30 West 16th Street NY, New York, 10011, United States
Founding year: 1847
Address: Jesuit High School, 4133 Banks St. New Orleans,, Louisiana, 70119, United States
Founding year: 1845
Address: Tilton School, 30 School Street, Tilton, New Hampshire, 03276, United States
Founding year: 1845
Address: Friends Central School, 1101 City Ave, Wynnewood, , Pennsylvania, 19096, United States
Founding year: 1845
Address: Germantown Friends School, 31 W Coulter St, Philadelphia,, Pennsylvania, 19144, United States
Founding year: 1845
Address: Packer Collegiate Institute, 170 Joralemon Street Brooklyn,, New York, 11201, United States
Founding year: 1845
Address: Lee Academy, 26 Winn Rd, Lee, , Maine, 04455, United States
Founding year: 1844
Address: Stuart Hall School, 235 W Frederick St, Staunton, Virginia, 24401, United States
Founding year: 1844
Address: Wyoming Seminary College Preparatory School, N Sprague Ave, Kingston, Pennsylvania, 18704, United States
Founding year: 1844
Address: The Boys' Latin School of Maryland, 822 West Lake Avenue Baltimore, Maryland, 21210, United States
Founding year: 1843
Address: Miss Porter's School, 60 Main Street Farmington, , Connecticut, 06032, United States
Founding year: 1843
Address: Notre Dame de Sion School, 10631 Wornall Rd, Kansas City, Alabama, 64109, United States
Founding year: 1842
Address: Malvern Preparatory School, 418 S Warren Ave, Malvern, Alabama, 19355, United States
Founding year: 1842
Address: St. Johnsbury Academy, 1000 Main Street St. Johnsbury, Vermont, 05819, United States
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