 It offers nine Conservatory of the Arts programs and 23 competitive teams in 12 sports.Mayfield School was founded in 1931 by the Society of the Holy Child Jesus at the invitation of John Joseph Cantwell, then the Bishop of Los Angeles-San Diego (as the Archdiocese of Los Angeles was then known as).In 1950, the school split into Senior and Junior Schools due to space constraints and zoning regulations.