The John Cook House, one of the earliest known masonry residences constructed in New Haven, possesses exceptional historical and architectural significance for the city of New Haven. The house is among the best examples of a Federal-style residence in the city, retaining a high degree of architectural significance despite changing uses and a succession of prominent owners. Constructed by John Cook, local tailor and merchant, the property was purchased in 1814 by Capt James Goodrich. Goodrich is said to have retained master carpenter David Hoadley to design and build the outstanding third-floor ballroom, the only extant Federal-style ballroom in the city. In addition to Capt. Goodrich, other prominent individuals associated with the property during the nineteenth century included Charles Atwater Jr, businessman and politician; and Dr Charles A Lindsley, medical leader and founder of the Connecticut State Board of Health. The house served as headquarters for the State Board of Health from 1885 to 1906. Its association with public health was perpetuated following its purchase in 1919 by the Visiting Nurse Association (VNA) of New Haven. An important element in the history of women in New Haven, the VNA's involvement with health care is an example of a vital community service provided to thousands of the city's residents during the twentieth century. NRHP