Just some food for thought. I've owned a lot of these autograph albums. It's quite common that there are some oddball signatures in them that are baseball associated but not players. People like scouts, announcers, mascots, umpires, other members of the team like traveling secretary, etc. In addition, it's also common to find folks who were famous and happened to be at the game so they got the signature of them as well. And lastly, you also see random people signing the books, who aren't famous at all
(or at least not to us anymore). I think you mentioned it being alone on a page? Was this the only signature that was alone on a page?