According to the Village of Ossining Downtown Walking Tour:

Highland Cottage, also known as the Squire House, is a High Victorian Gothic style house constructed in 1872. The house was built almost entirely from concrete, leading to the disparaging nickname “Mud House.” Workers experienced in the use of concrete in house construction were brought from England to build the house. Residents of the house included Dr. Amos Osborne Squire (1875-1949), who served as chief physician of Sing Sing Prison, along with his daughter Evelyn Squire Culp (1907-2002), a prominent citizen who played a key role in the community’s civic life during the mid and late 20th century.

Taken with a Sony RX-100 M3.