The journal of Joshua Gilpin, 1809 : pleasure and business in western Pennsylvania /

by Gilpin, Joshua, 1765-1841
Harrisburg : Commonwealth of Pennsylvania, Pennsylvania Historical and Museum Commission, 1975

Guide to the published archives of Pennsylvania covering the 138 volumes of Colonial records and Pennsylvania archives : series I-IX /

Harrisburg : Division of Public Records, Penn. Hist. and Museum Commission, 1949

Pennsylvania politics, 1872-1877 : a study in political leadership /

by Evans, Frank B. 1927-2021 (Frank Bernard)
Harrisburg : Pennsylvania Historical and Museum Commission 1966

The WPA guide to Philadelphia /

Philadelphia : University of Pennsylvania Press, 1988