Seems to me that some Columbia graduate here must have an alumni directory that was published five or more years ago. (I have a number of these for my alma mater.) How about looking up Soetoro for us?
ML/NJ
Are there any online directories for those years?
I have one, and he's in it. There is also an article by him in the college magazine from 1983 decrying the deployment of pershing missiles in Europe.
I don't doubt he has the paper from Columbia. I just doubt that he was part of the normal campus system.