Registration records and transcripts can also offer some less obvious information. Some may come with a card that lists the student's birth date, home town, Father or Mother's name, Father or mother's occupation, previous schools attended and when, sometimes religion, and perhaps a major. If you're really lucky, there might even be a picture that was taken on registration day.
The only problem with Transcripts and Registration records is that they are student records and are therefore restricted. It is likely that the researcher will need to contact the University's registration and records department in order to get permission to see and/or copy a transcript. Generally, the older the transcript, the easier it is. Just call and ask. The general public can obtain "directory" information without getting copies and without permission from the University. Directory information is Name, dates of attendance, major, and graduation status.
So, if you're interested in what your ancestor studied in college, track down their transcripts either in the Archives or in Registration and Records. The stories of their college years are waiting to be discovered.