What were the original runways at Idlewild airport?

The original runways (that I know of) are:

1L
7L
31R (8000ft at the time)
31L (9500ft)
1R (Closed in the 50s)
7R (Closed in the 60s)
4 (8000ft now 4L, 1949)
4R (Added 1959)