CNJ Joe, loved your post of the Grafton & Upton. I’m a lifelong fan of the short line, having grown up near the North Grafton, MA, terminal and yards. I could see the trains running across the field from my house!
Back in the day, G&U operated an Alco S4 and two GE 44 tonners. The line was dormant for a time, but returned to operation after 2000 with an assortment of first generation diesel power, including GP9s and a F7. Yes, an F7 in revenue service! I believe G&U still owns the F7 and has used it for Christmas excursions. Trains magazine published an article on the G&U and F7 a few years ago.
I wish G&U would repaint their ex CSX power back to their traditional gold and black. Thanks for posting, Joe!
John