Predicted oil recovery by waterflood and gas drive, Bradford Third and Sartwell Sands, Sartwell Oilfield, McKean County, Pa.John R. Duda1967
The feudal history of the County of Derby; (chiefly during the 11th, 12th, and 13th centuries) by John Pym Yeatman ... Sir Geo. R. Sitwell ... and Cecil J.S. Foljambe.John Pym Yeatman1890