Cocks, Robert S. The Presbytery of Northumberland 175th Anniversary, 1811-1986; Book I - One Hundred Fifty Years of Evangelism, The History of Northumberland Presbytery 1811-1961; Book II - The History of Northumberland Presbytery 1961-1986. Montoursville, PA: Printed by Paulhamus Litho, Inc., (1986). 
Blue wrappers, 6 x 9 inches, 160 clean pp. The two-page illustration of the church buildings inserted a bit off center. Illustrated. Good. Paperback.
A history of this central Pennsylvania Presbytery located along the Susquehanna River. It begins in colonial times with the missionary David Brainerd. Includes short histories of individual congregations.