Removal of religious/racial requirements?

[naraht]

From what I have been able to tell in the 1940s, at least have of the fraternities in the National Interfraternity Confernence had some level of racial or religious requirements for membership written into their bylaws. I'm interested in finding out about these requirements and when they were removed (the last changes were, I think, in the 1960s).

I'm interested in both the NIC and NPC, I'd be suprised if any of the NPHC fraternities and sororities had them. (Though in practice, I'd be surprised if they had any non-negro members by WWII simply because of who would have been interested).

If you know for your own fraternity or sorority, speak up, or any reference work on the subject...

Thank You
Randolph Finder