A Short History of the Codorus Valley: 1700s and 1800s
Course | Registration opens 12/7/2026 8:00 AM EDT
Join us to learn about the Codorus Valley during the 1700s and 1800s, the area between the three main branches of the Codorus Creek in southwestern York County. This area has become a central hub for development in York County and at the same time retains parts of the past. The Codorus Valley was first settled by Germans from the Palatinate region as west of the Susquehanna opened to settlement in the 1730s. The area had some of the earliest roads, the first railroads, and some of York County’s earliest churches.
Thomas Yingling
Thomas Yingling spent his career in the machining industry, advancing from a tool and die maker to founding his own business. His business, TRY TEK Machine Works, Inc., designed and built equipment for sewer and water pipe rehabilitation using trenchless technology that is used worldwide. In retirement, he served as president of the Codorus Valley Area Historical Society located in Jefferson, York County.