Presidential succesion

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Across
  1. 2. 11th president
  2. 6. 6th president
  3. 9. 5th president
  4. 11. 2nd president
  5. 12. 9th president
  6. 13. 10th president
  7. 14. 16th president
  8. 15. 8th president
Down
  1. 1. 12th president
  2. 2. 14th president
  3. 3. 15th president
  4. 4. 7th president
  5. 5. 1st president
  6. 7. 13th president
  7. 8. 3rd president
  8. 10. 4th president