San Francisco BOO 👻 on Twitter: "The Little Puffer is turning 115 years old! To celebrate its 115 years, we will be handing out complimentary engineer hats each day of this #MemorialDayWeekend (
San Francisco BOO 👻 on Twitter: "🚂All aboard! The Little Puffer Steam Train an integral part of #SFZoo history and is one of only three remaining 22-inch gauge engines left in the