Founding year: 1946
Address: Lexington Christian Academy, 48 Bartlett Ave Lexington,, Massachusetts, 02420, United States
Founding year: 1946
Address: Second Baptist School, 6410 Woodway Drive, Houston, Texas, 77057, United States
Founding year: 1945
Address: Georgetown Day School, 4200 Davenport Street, NW, Washington,, Washington, 20016, United States
Founding year: 1945
Address: Gilmour Academy, 34001 Cedar Road, Gates Mills, , Ohio, 44040, United States
Founding year: 1945
Address: Cardigan Mountain School, 62 Alumni Drive Canaan,, New Hampshire, 03741, United States
Founding year: 1945
Address: The Newman School, 247 Marlborough Street, Boston, Massachusetts, 02116, United States
Founding year: 1945
Address: San Joaquin Memorial High School, 1406 N. Fresno St., Fresno, California, 93703, United States
Founding year: 1945
Address: Maplebrook School, 5142 NY-22, Amenia, Alabama, 12501, United States
Founding year: 1944
Address: North Cross School, 4254 Colonial Avenue Roanoke,, Virginia, 24018, United States
Founding year: 1944
Address: Junipero Serra High School, 451 West 20th Avenue San Mateo,, California, 94403, United States
Founding year: 1944
Address: Campbell Hall, 4533 Laurel Canyon Blvd, Studio City, Alabama, 91607, United States
Founding year: 1942
Address: St. Anselm's Abbey School, 4501 South Dakota Ave NE, Washington, 20017, United States
Founding year: 1942
Address: Jesuit College Preparatory School of Dallas, 12345 Inwood Rd, Dallas,, Texas, 75244, United States
Founding year: 1941
Address: St. Sebastian's School, 1191 Greendale Avenue, Needham, Massachusetts, 02492, United States
Founding year: 1941
Address: Beth Tfiloh Dahan Community School, 3300 Old Court Rd, Pikesville,, Maryland, 21208, United States
Founding year: 1941
Address: Sacred Heart Apostolic School, 5901 N 500 E Rolling Prairie, Indiana, 46371, United States
Founding year: 1941
Address: Charlotte Country Day School, 1440 Carmel Rd, Charlotte,, North Carolina, 28226, United States
Founding year: 1941
Address: The Roeper School, 41190 Woodward Ave Bloomfield Hills, Alabama, 48304, United States
Founding year: 1940
Address: Ben Lippen School, 7401 Monticello Road Columbia, , South Carolina, 29203, United States
Founding year: 1939
Address: Delbarton School, 230 Mendham Rd, Morristown, , New Jersey, 07960, United States
Founding year: 1939
Address: Lancaster Mennonite School, 2176 Lincoln Hwy E Lancaster,, Pennsylvania, 17602, United States
Founding year: 1938
Address: Miami Country Day School, 601 NE 107th Street, Miami,, Florida, 33161, United States
Founding year: 1938
Address: North Country School, 4382 Cascade Rd, Lake Placid,, New York, 12946, United States
Founding year: 1937
Address: Maimonides School, 34 Philbrick Rd, Brookline, Alabama, 02445, United States
Founding year: 1937
Address: Ramaz School, 125 East 85 Street , New York, 10075, United States
Founding year: 1936
Address: St. Thomas Aquinas High School, 2801 SW 12th Street Ft. Lauderdale, Florida, 33312, United States
Founding year: 1935
Address: Dublin School, 18 Lehmann Way, Dublin,, New Hampshire, 03444, United States
Founding year: 1935
Address: Chadwick School, 26800 South Academy Drive Palos Verdes Peninsula,, California, 90274, United States
Founding year: 1935
Address: The Putney School, 418 Houghton Brook Road Putney, Vermont, 05346, United States
Founding year: 1935
Address: Lycee Francais de New York, 505 E 75th St, New York, Alabama, 10021, United States
Founding year: 1934
Address: Maumee Valley Country Day School, 1715 South Reynolds Road, Toledo,, Ohio, 43614, United States
Founding year: 1934
Address: Poughkeepsie Day School, 260 Boardman Rd Poughkeepsie, New York, 12603, United States
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