I never realized Phi Mu was second oldest... we don't have it at our school, and I really don't pay attention to sororities that don't have charters here (sorry, no offense!) But that's neat.
Whoever said that Lewis school was the Psi chapter of Delta Gamma... where'd you hear that? I always assumed it was Alpha, still. Anyway, Lewis school was where we were founded, and it's no longer in existance. Our Beta is at the University of Washington. I don't have my Watchwords with me (our new member ed had to borrow mine b/c I had notes) so if any of this is wrong, please correct me!