Any chance that's CSX2000?
I agree with Richstang. I've been to, and driven on, the Dearborn PG many times. This photo doesn't exactly match up.
Can't swear what it looked like in the 1960s, but judging by the flowers and the curbing behind CS's right foot, I'd guess this was outside a building somewhere on the Ford Dearborn property.
BTW: The photog should have lowered the camera by two inches to get rid of the tree branches from behind Carroll's head and making him look like crazy hair.