Farmingdale had a two-track yard along where Railroad Ave is. The tracks were set up as - south was the Southern main, and the middle and north tracks were yard tracks, with the spur to the PRR coming off the north track. The spur was double-tracked. One of the last uses of the yard, if not the last, was in 1972 I believe, when CNJ dropped off caboose 91155 for delivery to the Pine Creek RR at Allaire. Not sure if the PRR from F'dale to Freehold was in service then, although intact. Gold Lumber, or its previous owner, was a customer on the line.
Around the same time or a little before, when the diamond was still in place, an occasional hopper car was spotted on a ramp next to the (then) Frequency Engineering Labs, visible from Rt 524, the last of the line from Sea Girt to F'dale still in service. As long as the diamond was in place, a big three-panel CNJ absolute block signal protected the crossing, most of the time showing three reds. Another block signal was just past that, a single panel with a "take siding" lamp under the signal.
When I was little, on a car trip with family, we "chased" a PRR freight from Sea Girt to Freehold. As I recall, either an S or SW loco was pulling two or three boxcars and a caboose. High speed it wasn't. The train was doing all of 25, if that. We met it at each crossing, the crew waving to the little kid having the time of his life.
They tell me to act my age. I don't know how to do that. I've never been this old before.