Someone did make a post about his death last week, writing, "Roy Chernock has passed away at 90....HOF coach for sure, everywhere he coached. Oceanside HS, CW Post, William and Mary, Baruch College. I learned so much from him. Tough little guy and always willing to share what he knew. Rest in Peace Roy."
Chernock had quite a career. After great success at Oceanside HS, CW Post (where he coached Vin Lananna), William and Mary (he's in there HOF) and others, he retired in 1990 at age 62. Well he didn't stay retired long as he started coaching at the HS ranks and didn't retire again until 2016.
Here are some articles on his passing.