Jon's notes are on the stand next to his bed, which is the last one on the left in the residence tent. Go there to look for them.
However, Lily, his graduate student, is really territorial and won't let you take them. Take a pill, lady!
Getting around her is easier than you'd think, however. After you talk to Lily and Nancy says Jon told her to take his notes, Lily barks at you like a small dog snarling at the mailman, but you can just go back to Jon's area and take his notes. She won't hassle you again.