"Left on the cutting room floor" is a popular expression when talking about the production of motion pictures. A lot of film is shot for a movie, but not all of it will end up on the screen. Thus, what is not seen in the movie is "left on the cutting room floor."
While Linfield's Oak Leaves student yearbook is (or was, if it no longer exists) not a motion picture, not every photo taken or considered for the yearbook ended/ends up in print.
The two photos here are examples. These are from a 1969 cross-country meet (opponents included PLU and Pacific) on the Pacific University campus in Forest Grove, Ore. The photos were going to appear in the 1970 Oak Leaves, but, alas they were "left on the cutting room floor."
Speaking of the 1970 Oak Leaves, read a tale about a photo which DID appear in the yearbook here.