So I was browsing around RRPA and came across a picture with little other information.
http://www.gnair227.rrpicturearchives.n ... id=3560250

Anyone know anything about these? They look like old Boontons with the open vestibules.

If they are the ones I'm thinking of.... They were part of a campground/attraction in Williston that apparently never got off the ground... A new owner took over and scrapped the steam loco, a 2-8-2T...I think it was Coos bay #10?....the photo date is 2013, so they are probably long gone, as the new owners wanted everything gone quick... There was also a narrow gauge/park train set there...I think it came from Six gun territory?...., it went to a family near there that operated a family farm attraction...I think it was the Kirby family farm...
There were a few old cars and such too...

The Kirby Family Farm, we should remember, also picked up sixteen RBBX circus train cars after the circus liquidated. They're plainly visible in current aerial views.

A quick perusal of other websites suggests that the other RV park in question MAY have been what is now the nearby Williston Crossing RV Park, a mere half-mile or less up the CSX track. I don't see these cars in a quick "Google Maps drone flyover," but......

Okay, here's the caboose hiding to the right in 2014:
http://www.rrpicturearchives.net/showPi ... id=3883107

THIS one is now reported to be at Kirby Farms:
http://www.rrpicturearchives.net/showPi ... ?id=815717

Then this RyPN thread from 2011:

viewtopic.php?f=1&t=31618

Take it from there............

Even more: An RS4TC is there, and the caption says a LOT more:

https://www.flickr.com/photos/aem-7_alp-44/40253652395

According to Google Earth, the three cars and caboose are still there at the Williston RV Park as of last December. The shrubbery has been cleared out and the cars appear to have had some roof work done.