The Commission is the official history agency of the Commonwealth of Pennsylvania. It is responsible for the collection, conservation, and interpretation of Pennsylvania's historic heritage, which it accomplishes through the Pennsylvania State Archives, the State Museum of Pennsylvania, the Bureau of Historic Sites and Museums, the Pennsylvania Trails of History, the Bureau for Historic Preservation, and the Bureau of Management Services.

Seems more an umbrella organization than an institution offering unique educational programs.

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May operate a museum, but website does not provide specifics.

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The Trust is a nonprofit organization established in 2002 in response to the threat to demolish the historic 18th-century Jones Log Barn. The Trust's mission is to preserve and protect historic and cultural resources in Tredyffrin Township for the benefit of present and future generations and to educate the public about the preservation and protection of historic and cultural settings.

Does not appear to be affiliated with a specific historic site or offer interpretive services aimed at school-age audiences.

The former 1857 home of the Wiltwyck Hose Company features antique firefighting artifacts and apparatus including an 1898 streamer.

Cannot find a website.