Clayton was the residence of Henry Clay Frick, located on Penn Avenue in the Point Breeze section of Pittsburgh.
Clayton was originally built in 1870 and remodeled by Frederick J. Osterling between 1891-1921. 150 acres of the property was donated by Henry Frick to the City of Pittsburgh in 1919 to establish Frick Park. The mansion was inherited by Frick's daughter, Helen, and was willed to the Frick Foundation in 1984. It was converted into a museum in 1990. The Frick property also boasts a conservatory, a car and carriage museum as well as an art museum. Famous writer Annie Dillard wrote about this section of Pittsburgh and featured it in her novel, "An American Childhood."