On the banks of Lake Chauncy sit the remains of the Westborough Insane Hospital, later known as Westborough State Hospital. Westborough is perhaps best known as the second homeopathic hospital for the insane in the United States and the first example of institutional reuse in the nation. The hospital's unique treatment methods put it squarely at the forefront of mental health treatment, and it was one of the last state hospitals in Massachusetts to close its doors. The pioneering African American pathologist Solomon Carter Fuller spent much of his career at Westborough studying the physical changes made to the brain by Alzheimer's. When it closed in 2010, it was the only state hospital in New England with a dedicated unit for deaf and hard of hearing patients. Though somewhat less infamous than some of its neighbors, Westborough holds a very distinctive place in the history of mental health treatment.

List of members in each volume except v. 27.