I came across three great photos of the Jersey City waterfront taken in 1960 that show the extensive railroad infrastructure that used to exist there.
Photo 1: http://www.flickr.com/photos/59635146@N08/6478913999/
Photo 2: http://www.flickr.com/photos/59635146@N08/6479012469/
Photo 3: http://www.flickr.com/photos/59635146@N08/6523535499/
Annotated version of Photo 1: http://lists.railfan.net/erielackphoto.cgi?erielack-02-01-12/Overview_Jersey_City_NJ-annotated.jpg (courtesy of the Railfan.net Erie Lackawanna Email List Photo Archive)