#100CitiesInSF - TENNESSE (CITY) If you’ve wandered around Potrero Hill you may have noticed that all of the north-south streets are named after states, and each of the east-west streets are named after counties in California (Mariposa, Alameda, etc). But why? The second mayor of San Francisco, Dr John Townsend, envisioned developing Potrero Hill (or Potrero Nuevo, meaning new pasture, as it was called at the time by the Spanish missionaries that used it to graze cattle) into a community for migrants. It was seen by local residents as an intersection between Mexican California and the United States, so Townsend capitalized on this sentiment. But why are some of the states missing? There are many theories: was it the states Townsend had visited (although some of them had only recently been admitted to the union), were they battleships named after states, or were they just chosen over a game of cards?