If you can find cartoons by Berke Breathed from his college strip, The Academia Waltz, I heartily recommend them. He started as the cartoonist for the campus paper the summer before I arrived at UT/Austin for grad school. There were some things in that strip that are raunchier than his post-college strips, but that's in the nature of college newspapers. His artwork also evolved (got better) over time.
A couple of characters made the transition from pre- to post-college. Steve Dallas is the principal one of those. Opus and all the child characters like Binkley are strictly post-college, but Opus is clearly derived from the only nonhuman character in Waltz, a dog named Rabies.