Sonoma State University's SDC Cemetery Project

This project is a working collaboration between the Glen Ellen Historical Society, Dr. Alexis Boutin, and the Sonoma State University Department Anthropology.

Operating from 1892-2018, the Sonoma Development Center served as a residential and rehabilitation center for people with intellectual and developmental disabilities. Initially a school for “feeble minded” children, the campus grew throughout the twentieth century to become a focal point for medical research and eugenics programs in the western half of the United States. In the later half of the twentieth century, the SDC’s focus shifted away from eugenics based programs and expanded its educational and vocational programs. The Center closed its doors in 2018.

While in operation, more than 1,925 residents were buried in the campus’ “Home Cemetery”. Shortly after the cemetery went out of use, most of the grave markers were removed from the site and the cemetery has been largely erased from the visible landscape. Since 2023, Sonoma State University faculty, staff, and students have worked alongside the Eldridge Cemetery Memorial Committee; the Glen Ellen Historical Society; and the California Departments of Developmental Services and General Services to research and memorialize the individuals buried at the site.