Hi Reading Fan,
My neighbor Herbie Hurt was the engineer on 2100 for the rambles. He invited me to go along, but I didn't know what an "excursion" was. About 8 years ago, a member of an HO club gave me some photos of 2100 at Jenkintown. One had Herbie hanging out the window. He was also the engineer for the Ambler Switcher.