From Rockland Ave. Bridge about 1905:
Rockland was the summer home and gentleman's farm of Philadelphia industrialist Charles Stewart Wood (1800–1873). On the G.M. Hopkins 1871 atlas of Montgomery County a farm road separates the properties of James Sullivan and C. S. Wood. On this map it crosses the tracks and covers its entire modern extent between Merion Road in Merion and the location of present-day E. Wynnewood Road, opened later to connect to the 1879 Wynnewood Ave. railroad tunnel. An 1893 deed (book 376, page 438) refers to "…a 30-foot wide lane called Rockland Ave. laid out by J[ames] Sullivan for the joint use of the lands bounding thereon…" It is depicted as a bridge starting in 1881, while Narberth Avenue was lableled Old Gulf Road and terminated at Haverford Avenue. So we may declare Rockland Avenue the earliest track crossing within the bounds of Narberth, as well as the first street on the southside, and one of the earliest overall.
The Rockland Avenue bridge was demolished in August 2013.