21 Million Reasons to Research at the Historical Society of Pennsylvania

Key points and insights

In a rich and enlightening webinar, “21 Million Reasons to Research at the Historical Society of Pennsylvania,” expert genealogist Katy Bodenhorn offers a compelling exploration of the largest genealogical repository in the Mid-Atlantic. Formerly the Genealogy Director at the Historical Society of Pennsylvania (HSP), Bodenhorn provides a behind-the-scenes look at the scope and significance of HSP’s vast and diverse holdings. With more than 21 million items documenting four centuries of American, Mid-Atlantic, and international history, HSP emerges as a critical destination for genealogists tackling complex or elusive family histories.

Key Takeaways from the Webinar:

• HSP Holds Rare and Niche Records Unavailable Elsewhere: While HSP is not the source for common government records like birth or death certificates, it offers rare treasures such as personal diaries, church records, business archives, social welfare case files, and detailed correspondence. These sources often document overlooked or marginalized individuals, including Civil War soldiers, foster children, immigrant coal miners, and women in care homes.
• Preparation and Catalog Use Are Essential: Unlike mainstream genealogical databases, HSP’s Discover catalog requires thoughtful navigation. Researchers must come prepared with specific terms (e.g., geographic areas, ethnic groups, or organizations) rather than individual names. A step-by-step demonstration of using the catalog, identifying collection numbers, and interpreting finding aids equips viewers to make the most of both on-site and remote access.
• Hidden Histories Come to Light Through Case Studies: Bodenhorn highlights emotionally resonant and historically rich examples, including the Children’s Aid Society case files, diaries from Civil War nurses, and correspondence from Slovak POWs. These records not only aid in genealogical discovery but also illuminate broader social, racial, and immigrant narratives that are often missing from standard sources.

This presentation is an indispensable resource for anyone researching Pennsylvania ancestry—or for those with ancestors in the broader Mid-Atlantic. To discover overlooked records that could break through brick walls or enrich your family story with unique historical context, viewing the full webinar is highly recommended.

For researchers ready to deepen their exploration, the accompanying six-page syllabus offers valuable links to HSP’s online catalog, digital archives, and affiliated collections. Dive into these resources to uncover stories hidden for generations—and to better understand the individuals who shaped your family’s past.