Henry B. Clarke House
Clarke House may have been modeled on the home of William B. Ogden. The Clarke house is often described as the oldest surviving house in Chicago, although part of the Noble-Seymour-Crippen House in the Norwood Park neighborhood was built in 1833. (However, Norwood Park was not annexed to Chicago until 1893.) The Clarke House was designated a Chicago Landmark on October 14, 1970. It was added to the National Register of Historic Places on May 6, 1971.
List of Washington &amp; Jefferson College buildings
The oldest building on campus is McMillan Hall, which was built in 1793 and served as the only building for the old Washington Academy. It is the eighth-oldest academic building in the United States that is still in use for its original academic purpose, and is the oldest surviving college building west of the Allegheny Mountains, which was considered part of the American frontier during the Colonial period.