Way way back in the day, the Mission had some minor league baseball teams. The first was called the SF Missions (who quickly moved to Salt Lake City and became the SLC Bees), and the next was called the Mission Reds (who toiled here for 12 years before ending up down south as the Hollywood Stars). Neither was as beloved as the Seals, of course. Nonetheless, Wikipedia’s complete history is fascinating.
And since the holidays are coming up, it might be wise to stock up on some handsome throwback gear (pictured). Thanks to Plug1 for bringing all of this to our attention.