Kevin, one of the prioritys is having a e-mail listing!!!!!!
If possible, have it founded in an area where there may be a concentration of your Brothers. Why you may ask? Well, I going to tell ya!
This way, you can get enuff guys together for a monthly gathering at a local pub just to Beer and BS!
If enuff Guys, you an send a newslettter out maybe 2 times a year and e-m 2 times a year.
Plan say a golf outing in the summer. Wehad one yearly for a long time and had great turn outs. At the end o fht eGolfing, we went to a Brothers house and had BBQ! It became a family thing and guys would come to visit family for vactation so could play and just have fun.
One of our Brothers has a 4 Th. of July Bash, BBQ, horeshoes, volley ball, fishing, and just fun! Big turnout every year. Actives and Alums are always there.
For those that cannot or live to far away, that is what the e-m and lettters are for to keep them informed. If there is a pocket of Brothes else where, set up another Alum group but coordinate with the central Alum core.
Hope this gives you some ideas!!