Since my time started in the 80's... it's hard to say.
Dave Hill is still around up here, teaching music.
Dave Franks (marched in your era) teaches as well.
Randy Graves sells musical instruments in Salem.
Richard Kibbey (Marching) is with the Oregon Crusaders now.
George and Cheryl Miles are both active in different corps. I played at their wedding and for the life of me, can't remember Cheryls maiden name. Anyway, George worked with the Mandarins last year, and Cheryl continues with the Blue Devils.
BTW, yes, those were our uniforms. But in 1983 we changed to MUCH better outfits (cadet style, burnt dark orange with silver rope trim). That was the year we did Superman.