Right. So we're supposed to be discussing who has left campus for whatever reason and then came back...
Florida Delta, my own beloved chapter, was given her first charter in 1969, but the attitude at UF toward Greek life became negative and many sororities suffered a decrease in membership. Florida Delta voted to relinquish the charter and become alumnae rather than have the name of Pi Beta Phi thought of as anything but the best. (I'm copying this from my new member manual.

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In 1984 the Grand Council thought it was a good time for our re-introduction to UF and by the end of recruitment Florida Delta initiated 100 new members.
In 1993 we finally got our own house, and we're not going anywhere this time.
Does anyone else from UF know anything about the 70's at UF? With the current state of affairs it's weird to think of Greek life being looked so badly upon back then. But it was a different time. Other fish to fry, I guess.
I don't know everyone who's come and gone, but Delta Chi closed its doors in 2001. Chi Phi is back. Pi Lambda Phi came back a few years ago.