I love seeing pictures from that era of ISU football. My parents graduated from ISU in 71 and 72 and I've always enjoyed looking at their old football game pictures from when they were students and fresh out of school. Showing your school pride has definitely changed since then, they had newsboy and panel hats with ISU or walking Cy on them and wore ISU scarves, etc.
I also find that era interesting in the fact that the school was smaller and there wasn't as much of an obsession with college football. My dad always talks about how they were friends with quite a few players but in that era there wasn't "god like" status for athletes. They were students that also played football. My parents always explained that you truly went to the games to watch some of your friends play, on cheer squad, play in the band, etc. And since it was on campus it was easy to do on a Saturday.