Other APO groups

[Brother Joseph]

I saw a few days ago on some other thread on this site a post regarding badges from other groups that had used the letters APO prior to us.

This got me wondering has anyone from nationals (or a chapter for that matter) every done research into these groups just to see what they practiced and anything interesting about them?

I know most of them were local organizations and a quick google search brings up a few University library websites with some collections/ basic information about them but that's about it.

I'm just wondering if anyone has had contact with one of these groups or knows any thing about them since I think its a neat coincidence that we shar letters and wonder what else we might have in common as well.