Founding year: 1842
Address: Saint Mary's School, 900 Hillsborough Street Raleigh,, North Carolina, 27603, United States
Founding year: 1842
Address: Saint James School, 17641 College Road Hagerstown,, Maryland, 21740, United States
Founding year: 1842
Address: Marion Military Institute, 1101 Washington St, Marion, Alabama, 36756, United States
Founding year: 1841
Address: Fordham Preparatory School, 441 E Fordham Rd, The Bronx,, New York, 10458, United States
Founding year: 1841
Address: Punahou School, 1601 Punahou Street, Honolulu, Hawaii, 96822-3336, United States
Founding year: 1841
Address: The Williston Northampton School, 19 Payson Avenue Easthampton, Massachusetts, 01027, United States
Founding year: 1839
Address: Episcopal High School, 1200 N Quaker Ln, Alexandria, , Virginia, 22302, United States
Founding year: 1838
Address: The Pennington School, 112 West Delaware Avenue Pennington, New Jersey, 08534, United States
Founding year: 1838
Address: Sewickley Academy, 315 Academy Avenue Sewickley, Pennsylvania, 15143, United States
Founding year: 1837
Address: Olney Friends School, 61830 Sandy Ridge Rd Barnesville, , Ohio, 43713, United States
Founding year: 1836
Address: Gould Academy, 39 Church Street P.O. Box 860 Bethel,, Maine, 04217, United States
Founding year: 1834
Address: Worcester Academy, 81 Providence Street Worcester, Massachusetts, 01604, United States
Founding year: 1833
Address: Visitation Academy, 3020 N Ballas Rd, St. Louis, Missouri, 6313, United States
Founding year: 1833
Address: Friends Select School, 17th &1651, Benjamin Franklin Pkwy, Philadelphia, , Pennsylvania, 19103, United States
Founding year: 1833
Address: Suffield Academy, 185 North Main Street Suffield, Connecticut, 06078, United States
Founding year: 1832
Address: St. Timothy's School, 8400 Greenspring Avenue Stevenson, Maryland, 21153, United States
Founding year: 1831
Address: St. Xavier High School, 600 W. North Bend Road, Cincinnati, Ohio, 45224, United States
Founding year: 1831
Address: Grand River Academy, 3042 College Street Austinburg,, Ohio, 44010, United States
Founding year: 1829
Address: Burr and Burton Academy, 57 Seminary Ave, Manchester,, Vermont, 05254, United States
Founding year: 1828
Address: Chapel Hill Chauncy Hall School, 785 Beaver St, Waltham,, Massachusetts, 02452, United States
Founding year: 1827
Address: Greenwich Academy, 200 North Maple Avenue, Greenwich, Connecticut, 06830, United States
Founding year: 1826
Address: Western Reserve Academy, 115 College St, Hudson, Ohio, 44236, United States
Founding year: 1823
Address: Foxcroft Academy, 975 W Main St, Dover-Foxcroft, Alabama, 04426, United States
Founding year: 1821
Address: New Hampton School, 70 Main Street, New Hampton, , New Hampshire, 03256, United States
Founding year: 1821
Address: Academy of the Sacred Heart, 1821 Academy Road Grand Coteau, Louisiana, 70541, United States
Founding year: 1821
Address: Gonzaga College High School, 19 Eye Street, NW Washington, , Washington, 20001, United States
Founding year: 1820
Address: Princess Helena College, Preston, Hitchin, Alabama, SG4 7RT, United States
Founding year: 1820
Address: Brewster Academy, 80 Academy Dr, Wolfeboro,, New Hampshire, 03894, United States
Founding year: 1818
Address: St. Louis University High School, 4970 Oakland Avenue St. Louis, Missouri, 63110, United States
Founding year: 1815
Address: Charleston Catholic High School, 1033 Virginia St E, Charleston, Alabama, 25301, United States
Founding year: 1814
Address: Emma Willard School, 285 Pawling Ave, Troy,, New York, 12180, United States
Founding year: 1814
Address: The Linsly School, 60 Knox Lane, Wheeling, West Virginia, 26003, United States
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