Oh boy, I just found something - the little service road to this area has name - DiStefano Way. And I just came across a place called Di Stefano Airpark while googling airports in Canajoharie. This is not only isn't Tomcat Airport, it is/was probably DiStefano Airpark 3NY4.

https://www.world-airport-codes.com/united-states/di-stefano-airpark-52210.html