The founders also built Christ Church Cranbrook as a focal point in order to serve the educational complex. However, the church is a separate entity under the Episcopal Diocese of Michigan.[3] The sprawling 319-acre (1,290,000 m2) campus began as a 174-acre (700,000 m2) farm, purchased in 1904. The organization takes its name from Cranbrook, England, the birthplace of the founder's father.