On May 17, 1764, blacksmith Daniel Burritt took possession of an eight-acre parcel of land that later became known as Knapp House. Between 1764 and 1774, when he sold the property to Benjamin Seelye, Burritt erected a house that still contains a large cooking fireplace, pantry area, cistern, and small shop area. Town records indicate there was also a small barn, of which only the stone foundation remains in the garden area. The other two rooms on the first floor and an added second story were added to the original structure in the 1830s and 1840s by several subsequent owners. In 1838, Royal Davis sold the house to Eliza (Roberts) Knapp, wife of Levi S. Knapp, for $1,000. Levi Knapp was a shoemaker, and upon Eliza's death the house reverted to him. It was conveyed to Gerardus and Sarah Knapp in 1893 and then to Frederick Knapp in 1903. In 1904, Frederick gave the property to his children, Harry Shepard, Margaret L., and Mary Clissold Knapp. Admiral Harry S. Knapp became Commander of the United States Naval Forces in European Waters during World War I, and the bell from his navy flagship can be seen on the New Milford Green. Harry and his two sisters lived in this house in summers and in Hartford during winter because there was no heat source except the fireplace. After their brother's death, the two Knapp sisters continued living in the house after updating the electric, water, and heat systems and adding a porch. They lived there together until Margaret's death in 1946, making Mary Clissold Knapp the last heir to the property. In 1955, Mary donated it to the New Milford Historical Society and Museum for use as a town museum. The house was completely renovated over several years, with work completed in 2020, and its oldest part now reflects the early Colonial period while the two front rooms are furnished in the 19th-century Victorian style used by the Knapp family.