Ah, I conflated the two State College, PA diners. So forget the red and white ... From web photos, your diner has superb brown and tan tile work flooring and an Art Deco exterior. Clearly, it is earlier than Baby's and to my eye much more attractive. Very nice and great memories!
Eat N Park sounds familiar; I'll have to investigate my sources.
Yes, "Tomlinson Run" is a play on words partially based on the WVA park and my name. I've never been there; sadly they don't have a railroad, but happily I do :-).
Tomlinson Run Railroad