[AOX81]

I was doing some research a couple years ago and came across this fact also. But I'm not from the group that affiliated with Phi Sigma Sigma. I went to the University of Michigan-Flint.

Actually there are quite a few groups with the name of Alpha Theta Chi...

Sororities
University of Michigan, Flint, Michigan
Vincennes University, Vincennes, Indiana
Hamilton College, Clinton, New York
Bethany College, Lindsborg, Kansas

Fraternities
Hope College, Holland, Michigan
Trinity University, San Antonio, Texas
Frostburg State University, Frostburg, Maryland

There is also an Honorary Society named Alpha Theta Chi...I guess it's really big in the South.

Plus I came across probably a 1/2 dozen others that are now affiliated with national organizations.

Hope this helps!

Have a great day!