Allaire Airport is in fact Monmouth Executive Airport. And yes, there isn't much left of Ed Brown's amuseument park. He built it without approval from Wall Twp., Monmouth County, nor NJ. When asked why he didn't seek approval. he replied that they wouldn't let him do it anyway, so why ask? I knew Ed Brown, and this sort of thing was standard for him. He was the largest taxpayer in Wall Twp., and every time they hassled him over something he threatened to close the airport and abandon it.
Pine Creek was located on Route 9 in Marlboro from 1952 to 1963, when it was moved to Allaire State Park. It had a quarter-mile 3-foot line, and a loop of 15" gauge track for the Cagney train operation at Marlboro.
The Cowboy City operation on Route 33 in Howell (1957-58-59) had a train ride, but it was supplied by the Pine Creek guys, as a contractor. (It was technically separate from Pine Creek, corporately). When Cowboy City closed after the 1959 season, the REAL Sheriff showed up, as Cowboy City had a problem with paying creditors. The train operation was almost lost, until paperwork proved the Copper Creek RR (corporately known as the Cranberry Creek RR Inc) in fact owned the trains, track, and related equipment.
The corporate entity known as Cranberry Creek RR later bought and operated the Middletown & NJ Rwy, Middletown NY.