"Joseph Mitchell Mansion." . . . . . "[Joseph Mitchell mansion]" . . . . . . . . "\"In 1856, architect Samuel Sloan created a magnificent country gothic mansion for prominent Philadelphia banker Joseph G. Mitchell. The house was constructed of Wissahickon schist stone with: abundant bargeboards, drip moldings, a crennalated tower,ornate porches and a slate roof.\" (from the collection)" .