The student body was known as "The Discoverers", as the school now known as Columbus High School is known today.Here is the title page:
It appears the original owner wrote their name across the top of the title page and either they or their descendants cut/tore it out before it ended up at the antique store. The entry I found interesting is found on page 7:
I recall a book on my father's bookshelf titled "Walt Behlen's Universe". Ambitious? I'd say so!
Do you know anyone that might appear in the 1929 Kramer High School annual? If so, drop me a line and I'll get a scan of their photo for you.
Look for high school and college annuals to see if you can find more information about your ancestors. I'd bet you can gain a little more insight on them as a real person.