Roeper History By ChildrensLibrary Oct 6, 1923 Bondys found Marienau Marienau Boarding School Oct 6, 1933 Bondys and George flee Germany for Switzerland Oct 6, 1939 Bondys and George move to USA Oct 6, 1939 Bondys found Windsor Mountain School Oct 6, 1941 George & Annemarie found Roeper City and Country School Oct 6, 1944 Roeper moves to current Bloomfield Hills location Oct 6, 1981 Roepers purchase M/US campus