Locomotive Swarthmore Station sketch. Swarthmore is a station along the SEPTA R3 line, the former Pennsylvania Railroad West Chester Line. The building was originally built in 1880 by the Pennsylvania Railroad and formerly held a caf Locomotive Swarthmore Station sketch. Swarthmore is a station along the SEPTA R3 line, the former Pennsylvania Railroad West Chester Line. The building was originally built in 1880 by the Pennsylvania Railroad and formerly held a caf