Founded in 1936, the Society is the oldest community organization on the Upper Main Line conducting local historical
research, and collecting local resources and photographs, pertaining to the townships of Tredyffrin and Easttown in
eastern Chester County, Pennsylvania.
The Society's next meeting will be held at 2:00 p.m. on Sunday September 18, 2016
Michael Morrison will present the remakable story of his grandfather Leslie White ("Slim") Morrison who helped to build the major power lines
that run though the Great Valley, and whose adventures inspired a novel and a Hollywood movie.
Our History Quarterly Digital Archives are available to all for viewing and searching.
This valuable local history resource contains most of the issues published since 1937, and provides
details and unique perspectives on many aspects of our historic community.
Mike Bertram's 18th Century Tredyffrin
section of the site, features interactive maps and a substantial collection of useful information about
tax & census returns, roads, mills & tanneries, inns, currency, war reparations, and more.
Our new Image Collection online database
continues to grow, with the recent addition of several new groups of images. This valuable resource
is also hosted in Mike's section of the site, and features a searchable partial inventory of our large and growing collection of historic images.