While identifying mystery sirens, I found yet another Littlefeild. This means there's three in existence, two in NY, one in private possesion.
The one I found: https://www.google.com/maps/place/43%C2 ... authuser=1
Second one: https://www.google.com/maps/place/42%C2 ... authuser=1
The one on YT: https://www.youtube.com/watch?v=JWhS3yZx5es
EDIT: I found another while looking at my map. why: https://www.google.com/maps/place/42%C2 ... authuser=1