 Lancaster Mennonite School is now composed of three campuses, founded as separate schools.Locust Grove Mennonite School was founded in 1939, and New Danville Mennonite School in 1940, to offer grades one through eight.The Lancaster Conference of the Mennonite Church began the development of a Christian high school, Lancaster Mennonite School, on the site of the former Yeates School in 1942.