Baseball Team Names Mystery

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Across
  1. 3. Monarchs and fountains
  2. 4. Stripy and pointy
  3. 11. Orange tweet-tweet
  4. 12. They fly and choose popes
  5. 15. Went to town riding on a pony
  6. 16. Western Mountains
  7. 17. Northestern sea lovers
  8. 18. Two of a kind
Down
  1. 1. Ohio Protectors
  2. 2. Heavenly flyers
  3. 3. Not yellows, not blues but...
  4. 5. Goliaths
  5. 6. Crimson stockings
  6. 7. Fathers
  7. 8. Ivory stockings
  8. 9. Horses and guns
  9. 10. Arrrrrrrrrr
  10. 13. Little bears
  11. 14. Texas stars