very old sports photos

30 plus years ago, my wife and I took lots of photos at rodeos. I recently "rediscovered" them, packed away in a

closet. I'm not sure what I can do with these as I never got model releases from the participants. We would process

the film and then mail or deliver pictures on demand.

Could I use them commercially as these were public events (like a high school or college ball game) or am I limited

strictly to personal use. There are only a couple of people whose names I remember and only one who I could easily

contact. Any help on this would be greatly appreciated.