The Pennsylvania line regimental organization and operations, 1776-1783
Bibliography of Pennsylvania history
Bibliography of Pennsylvania history : a supplement
Interviewing the people of Pennsylvania : a conceptual guide to ...
The capitols of Pennsylvania
Made in Pennsylvania : an overview of the major historical ...
Vigilance in Pennsylvania : Underground railroad activities in the keystone ...
Records of Pennsylvania's revolutionary governments, 1775-1790 (record group 27) in ...
First Pennsylvanians : The archaeology of Native Americans in Pennsylvania
Descriptive registers, 1829-1903