William James McKnight

• A Pioneer Outline History of Northwestern Pennsylvania, Embracing the Counties of Tioga, Potter, Mckean, Warren, Crawford, Venango, Forest, Clarion, ... Cameron, Butler, Lawrence, and Mercer
• Pioneer Outline History of Northwestern Pennsylvania, Embracing the Counties of Tioga, Potter, Mckean, Warren, Crawford, Venango, Forest, Clarion, Elk, Jefferson, Cameron, Butler, Lawrence, and Mercer