The 1855 Harris-Kearney House is an historical site located in Kansas City, Missouri, in the Westport neighborhood. Originally, the house was located at the intersection of modern-day Westport Road and Main Street (where the Katz Drug Store was located) The home is the oldest brick residence in the city. This Greek Revival mansion was built in 1855, and was owned by Col. John "Jack" Harris and his wife Henrietta. The Mansion House, as it was known, was moved to 4000 Baltimore, in 1922.