Looking through a couple of books I have in my inventory I was able to find a map detailing this in the book "By Rail To the Boardwalk" by Richard M. Gladulich. I found it on page 318 as part of Appendix B. The date on the map is July 31 ,1931, so just before PRSL. The map shows all the WJ&S and Atlantic City RR routes so its not exclusive. Would you have access to this?