Additional local stops in Pennsylvania were later added. On May 19, 1974, Amtrak added weekend service on the "Valley Forge": a Saturday train from Harrisburg to Boston, and a Sunday train from Boston to Harrisburg. The weekend service ended on October 26, 1975. On October 28, 1979, Amtrak and SEPTA began the "Ardmore Connection": the "Valley Forge" began stopping at , where a close connection could be made with a SEPTA Paoli–Philadelphia local train. On December 17, 1979, the westbound "Valley Forge" began stopping at 30th Street rather than bypassing it using the Pittsburgh Subway; however, it retained the Ardmore stop.