William Pryor Letchworth
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Letchworth was born in Brownville, New York on May 26, 1823, the fourth of eight children born to Josiah and Ann Hance Letchworth. Raised as a Quaker, Letchworth learned the values of hard work, charity, and development of the intellect from his family.
At age 15, Letchworth was hired as a clerk at Hayden & Holmes, a saddlery and hardware company. Letchworth succeeded at his tasks and in business in general, and by age 22 was a partner at Pratt & Letchworth, a company involved in the "malleable iron" business.
Glen Iris Estate
Although successful, Letchworth found the day-to-day operations of business burdensome. He sought refuge from the business world and decided to build a retreat estate. He settled on a location in former Seneca territory in western New York. They were pushed out of the area following the American Revolutionary War, as they had been allies of the defeated British.
Letchworth hired noted landscape architect William Webster to design the grounds of the estate, and named it Glen Iris. In 1906 he bequeathed his 1,000-acre (4 km2) estate to New York state. It now makes up the heart of Letchworth State Park.
In 1873, Letchworth was appointed to the New York State Board of Charities. "In 1875, he had inspected all the orphan asylums, poor-houses, city alms houses, and juvenile reformatories in the state which had an aggregate population of 17,791 children." Following his investigation, he recommended that all children under 2 years of age be removed from these institutions, which was accepted by the state. In 1878, Letchworth was elected as President of the Board. Letchworth resigned from the State Board of Charities in 1897.
Letchworth spent the next few years traveling around Europe and the United States at his own expense to explore the treatment and condition of the insane, epileptics and poor children. From this research, he wrote two books: The Insane in Foreign Countries and Care and Treatment of Epileptics. Many of his recommendations were later adopted by Craig Colony, a state epileptic hospital which he helped to establish in Western New York in 1896.
Letchworth served as President of the National Association for the Study of Epilepsy and the Care of Treatment of Epilepsy, and edited the Proceedings of its first Annual Meeting  Letchworth Village in Thiells, New York was also named for Letchworth.
In addition he was President of the First New York State Conference of Charities and Corrections, as well as President of the National Conference of Charities and Correction, held in St. Louis in 1884.
- Larned JN. The Life and Work of William Pryor Letchworth. Student and Minister of Public Benevolence. Cambridge / Boston – New York, The Riverside Press / Houghton Mifflin 1912
- Letchworth WP. Care and Treatment of Epileptics. New York – London, G. P. Putnam’s Sons 1900
- Letchworth WP, ed. Transactions of the National Association for the Study of Epilepsy and the Care and Treatment of Epileptics at the First Annual Meeting held in Washington, DC, May 14th and 15th, 1901. Buffalo, New York, C. E. Brinkworth 1901