Steve,
Your photos reminded me of when we used to attend the Monmouth County / Haskell Hunt meet back in the 80s - 90s. There were huge crowds and not enough parking so people were bussed to the farm. The meet was started by none other than Armory Haskell in 1932 who the Haskell Invitational at Monmouth Park is named after.
Article on the meet from one of the local papers 2006
http://hub.gmnews.com/news/2006-08-0..._page/053.html