In the Episode where the town is celebrating Jebidiah Springfield's day, the next day after Lisa dreams about George Washington, she is sitting at schools and is triggered by the picture (with the bottom torn out) of him on the wall. She then runs out of class and to the curator's office. She explains her discovery while pointing at the picture of George Washington with the exact same part torn out as the one in the classroom.

Also at the beginning there is a blue outline of Marge Simpson on the wall of the curator's office.