Devereux Glenholme was established in 1968School Overview, Peterson's Guide, accessed March 16, 2009 on the country estate of the Van Sinderen family, which had been donated to the Devereux Foundation by Jean White Van Sinderen, who had learned of the work of special education pioneer Helena T. Devereux and desired to create a school where children with special behavioral and learning needs could develop their potential. The school's administrative offices are in a colonial revival house originally called Glen Holme, designed by architect Ehrick Rossiter for industrialist William Leslie Van Sinderen (1856–1909) and completed in 1898.Scott J. Tilden, Visions of summer: Ehrick Rossiter in Washington, Connecticut, The Magazine Antiques, August 2007
