did Victor L. Butterfield, president of Wesleyan University (1943-1967). Associations Riverdale is a member of the Ivy Preparatory School League and the New York State Association of Independent Schools. Riverdale Country School, The Fieldston School, and Horace Mann School together are known as the "Hill Schools," as all three are located within two miles (3 km) of each other in the neighborhood of Riverdale on a hilly area above Van Cortlandt Park. See also Education in New York City References External links Private elementary schools in the Bronx Private middle schools in the Bronx Private high schools in the Bronx Private K-12 schools in New York City Preparatory schools in New York City Educational institutions established in 1907 Riverdale, Bronx 1907 establishments in New York City Ivy Preparatory School League