During the Depression and World War II, demand for its services increased, resulting in both overcrowding and long waiting lists for new enrollments.

[3] Staffing levels increased during the 1960s as philosophies on the treatment of mental disability changed, and there were 1,609 residents and 875 full-time staff as of 1969.

[4] In 1993, after numerous lawsuits concerning the conditions of the hospital, Mansfield Training School was closed and its patients sent to outpatient facilities and other institutions.

She was also wrongfully committed to the facility, her mother did not want to care for her and had tests on her mental state manipulated.

The state of Connecticut would continue investigation into the 90s when they found DNR (do not resuscitate) labels being inappropriately placed on patients.

Residents would be moved to community-oriented homes, representing a new approach to the treatment of disabled people emerging.

Children housed in the institution hand-molded the concrete blocks used to construct barns on the farm property.