Abstract
The sesquicentennial commemoration of the American Civil War is drawing deserved attention to Pennsylvania's and Pennsylvanians' involvement in and connection to this tumultuous period, as academics and the general public explore the diverse contributions and experiences of the state and its residents from scholarly or familial perspectives. Of the twenty-one million manuscripts, seven hundred thousand publications, and over five hundred thousand graphic items housed at the Historical Society of Pennsylvania, a significant portion are primary and secondary sources pertaining to the Civil War.