The Delco Summer Social brings together the community of Delaware County to celebrate the incredible musical history of the area with a live performance of local talent. Delco Historical Society hosts the Delco Summer Social at the Mill in Rockdale, nestled along Chester Creek, for an evening of music, fun, prizes and of course history. Your support helps Delco Historical Society continue to provide stewardship for Delco history and to share it with the community. Delco Historical Society helps promote and protect Delco history for the next generation of archivists and historians!