Overholt, Karl F., 1877-1938

Adelaide Howard Childs Frick, 1859-1931, was the wife of industrialist and art collector Henry Clay Frick. This collection contains correspondence, notes and notebooks, calendars, financial records, printed material, ephemera, and objects documenting her life, interests, and family.

Henry Clay Frick (1849-1919) was a prominent art collector and industrialist. This collection consists of diaries maintained by staff in Frick's Pittsburgh office, and a friendship calendar with submissions from his family and friends.

Henry Clay Frick (1849-1919), a Pittsburgh industrialist who made his fortune in coke and steel, was also a prominent art collector. This series consists of volumes containing copies of Frick's outgoing correspondence on matters relating to business and investments, art collecting, political activities, real estate, philanthropy, and personal matters.