SoCalGirl -
Since Tri-Sig was founded at Longwood, the only way I would give that story any credence would be if SK had a chapter at Longwood at the time, which they didn't. And I don't think that there was a lot of transferring between schools in those days. Although their pins do look a lot alike (but all the pins of the "Farmville Four" do too, for that matter).
Interesting theories, though.
p.s. Boys suck.
(the nice boys on this board being exceptions)