Okay, I went a little scanning nutty, and here are some more shots from that July day in 1978 in South Amboy and Matawan NJ.
First image is of two GP40Ps pulling a mix of flute-sided cars along the Raritan Bay. I found another picture of this location from someone else and he called it Morgan. Anyone know if that is correct?
http://www.railpictures.net/viewphoto.php?id=343198
Second image is of the engine change between GG1 and an NJDOT/CR/PC combo of E8s.
http://www.railpictures.net/viewphoto.php?id=343311
Third and final image is of another GP40P pulled train, this one going through Matawan. As much as we all couldn’t believe that those old GG1s were still going back then, this GP40P is still going today.
http://www.railpictures.net/viewphoto.php?id=343195
Thanks for looking and corrections are welcome.