Kappa.org can help!
In looking for members, you could go to the galley spreadsheet that lists the members, but there's also the member directory on the website. It allows you to sort by initiation date, location, etc. It's great!
I know that one of the projects in process right now is getting all the Night Owls chairs listed on the website. (I haven't checked to see if it's up just yet.) This could be a great resource for you.
Good luck with getting a group going! Any time a bunch of Kappas get together it's bound to be fun.

Kudos to you for taking the initiative.