In 1886, a New York State legislative commission recommended the purchase of the Dates Farm in the village of
Matteawan for $25,000. The site was rural, yet accessible by rail and offered good tillable land, pure water and pleasant scenery between the
Hudson River and the Fishkill Mountains. Architect Isaac Perry, known for finishing work on the New York State Capitol, was hired to design the main hospital building with "an abundance of light and ventilation" to accommodate 550 patients. In April 1892, the Asylum for Insane Criminals, with 261 patients, was relocated from Auburn to its new site. The following year, it was renamed Matteawan State Hospital. In 1899, another prison mental hospital was built on the grounds of Clinton.
Dannemora would hold male convicts who became insane while serving their sentences, and had the power to retain them if they remained insane at expiration of their sentences. Matteawan would hold unconvicted males as well as females in both categories. Like all institutions of its time, Matteawan included extensive acreage for farming to feed its residents. Up to were devoted to vegetable and fruit cultivation, a dairy farm, a piggery and pasture land for the animals. Barns and other farm buildings were built down the hill from the asylum. These included a tool shed built in 1900, a greenhouse (1919), a large residence hall for male patients and staff assigned to work the farm (1932) and a horse stable (1933).
First U.S. female officer killed In 1906, head attendant Nellie Wicks was killed when she was stabbed by inmate
Lizzie Halliday who had been placed there after committing several murders and arsons. Attendant Wicks is the first known female law enforcement officer to be killed in the line of duty in the United States. She had served with the
New York State Department of Correctional Services for one year. ==Mid 20th century==