Keith House. Built 1722 by Sir William Keith, Lieutenant Governor of the Province of Pennsylvania, 1717-1726. Also called Graeme Park, for Dr. Thomas Graeme, owner after 1737. At Graeme Park, County Line Rd., 1 mile NW of Pa. 611, Hatboro, PA by Pennsylvania Historical and Museum Commission Colour: blue Wikimedia: Flickr: Google Streetview OpenStreetMap