While doing a search on a resort in Minisink, I came upon your email address. Here's my facts:
My aunt (Irene Meissner) and her father (last name Schmitt - I think that's the correct spelling) owned a resort in Minisink called The Hav-a-rest House. I remember going there when I was about 5 years old. That was back around 1947ish. Mom and Dad used to go there during the summer to help out. Dad did handyman stuff, Mom helped out as a waitress. I have a picture someplace which I'll have to find. I also remember they had a small bar type building across 209. Being so young, my memories are not that clear.
I'm wondering if you've come across any mention of it in you travels of that area.
If you remember this place or have photos, please get in touch!