My cousin was a TKE at Rider in the early 1960's. He recently told me that his wife was a Sigma Iota Chi at Rider at the same time.

The Rider Greek Life site says that SIX became AXiD in 1967, just after she graduated.

The OP listed her location as PA and since Rider is just across the river in NJ, I thought that this was a good candidate for the OP's aunt.

AH! Thats soooo exciting! (im farbie0830 had to change my name!)

We have a composite of Sigma Iota Chi in our house! Tell her she should stop by Rider the girls would LOVE to hear stories and show her around! =]

She said her aunt went to Widener, but that could have been another local by the same name.

I *know* this is bringing this back from the dead, but I think I found the answer. If she was at Brandywine College, which became Widener's Delaware campus, they had a Sigma Iota Chi, which was the sister sorority to the chapter of Alpha Phi Omega.