The first cloverleaf in America

Driving up Route 1 a few miles north of campus, one may spot a small plot called Cloverleaf Cemetery. Thanks to a well read 6th grader, I discovered why it is called that. The History Channel has a web page that describes this same plot of ground as home to the first highway cloverleaf in the US. 

The problem is that I know that intersection well enough to know that there is no cloverleaf there. To figure it out I turned to imagery from the 1930s and 2007 and compared it.

But you won't find this in the post on New Jersey interchanges because it is not on an Interstate highway.