The University archives in the Library has all the info and pictures you need dating back to the very first season.
Set an appointment up and they let you go through whatever you want. I found that the athletic department doesn't have a very concise history of the bball program prior to the mid-80's.
While doing some research I came across a picture of Walt Chamberlain and Gary Thompson playing when they beat Kansas, way back when. The Armory looks very "Hoosieresque". It's hard to imagine that old place packed to the brim. It looked like kind of a cool old place to watch games.