Disneyland Black and White Snapshot of the Mad Hatter - Old Rubber Head Version with a Modification?

A very well behaved Mad Hatter photographed here all by himself.  Again, something that would never happen these days as the characters get mobbed immediately when they appear.  But what's that on his hat?

How bizarre, a San Diego Padres button.  Was Disneyland hosting some sort of Padres event that day?  I can't imaging any other reason that a button like that would be on his hat, unless he didn't know it was there.

Padres memorabilia collectors could probably date this photo based on the button, but I'm guessing 1970s.