girls high school in the United States by Niche.com in their 2023 rankings. Notable alumnae Tori Anthony, pole vaulter Amy Chow, Olympic Gold medalist in gymnastics, Pediatrician Nancy Ditz, Olympic marathon runner Helen Katharine Forbes, 1908 graduate, muralist and painter Pansy Ho, Macau-born heiress and operator of casinos Josie Maran, actress and model Penny Pritzker, philanthropist; U.S. Secretary of Commerce Beatrice Judd Ryan, art dealer, curator Grace Slick, singer and songwriter References External links Castilleja School Castilleja School assessed at Private School Review Girls' schools in California Buildings and structures in Palo Alto, California Educational institutions established in 1907 High schools in Santa Clara County, California Private high schools in California Private middle schools in California Preparatory schools in California 1907 establishments in California