The house at 127 Mansion House Road in Southbury may have been built around 1790 by Simeon Mitchell (d. 1826), whose son would build the nearby Mitchell Mansion House in 1829. Simeon’s daughter Anna sold the house in 1837 and it was then owned by the Curtiss and Monson families. In the 1880s the house was owned by William C. Beecher, who altered it by removing its original central-chimney and replacing it with the present two chimneys. He also added the bay window on the south side. William C. Beecher is described in the History of New Haven County, Vol. II (1892), edited by J. L. Rockey:
William C. Beecher, born in Southbury May 28th, 1828, is a son of Nathaniel and Hannah (Peck) Beecher, and grandson of Nathaniel. [. . .] William C. married Mary E. Strong, of Woodbury, April 4th, 1855. They have six children [. . .] Mr. Beecher enlisted in 1862, in Company B, 13th Connecticut Regiment, as second lieutenant, helping to recruit this company, he being the only commissioned officer from Southbury. He served under General Butler, participating in the taking of New Orleans, and afterward under General Banks. He was discharged on account of ill health February 5th, 1863, and returned to Southbury. After regaining his health, he was engaged in superintending railroad construction, his first work being on the Hartford, Providence & Fishkill road. Twelve years later he assisted in the completion of the same line under the name of the New York & New England railroad. He also assisted in building the Connecticut Valley, Providence & Springfield and the D. L. & W. railroads.
Alfred and Mary Platt owned the house from 1900 to 1935. Alfred Platt was Woodbury’s first rural delivery mail carrier.