Complex sentence: When the famous electric locomotive, the Pennsylvania Railroad GG1, would bring the trains form New York City's Penn Station, the K4s would take over the train and make the run from the South Amboy station to Bay Head, New Jersey.
Split into simpler sentences: When the famous electric locomotive; the Pennsylvania Railroad GG1 would bring the trains form New York City's Penn Station. The K4s would take over the train and make the run from the South Amboy station to Bay Head, New Jersey.