"Clue #2 has nothing to do directly with St. Patrick's Day (the holiday). It has nothing to do with the date March 17 and the org wasn't founded during the month of March."
The color green has special significance for Tri Delta, and is the color of our pledge pin. Also one of our symbols is the pine tree, which implies green and our flag is green and white.
I think it could be Tri Delta!
