 PA 63 was extended east to PA 532 in Philadelphia in 1928, following its current alignment between US 611 and Edge Hill Road in Willow Grove.From this intersection, the road followed Edge Hill Road and Terwood Road east before following Welsh Road to an intersection with PA 163/PA 232 in Bethayres and following Philmont Avenue between PA 163/PA 232 and PA 532.By 1930, PA 63 had seven auxiliary routes