Seuss Trivia Puzzle

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Across
  1. 1. Number children Dr. Seuss had
  2. 5. Year Dr. Seuss was born
  3. 7. Trees the Once-ler was cutting down
  4. 9. The big-hearted moose
  5. 10. Turtle on the bottom of Yertle's stack
  6. 11. Kid, you'll move _________
  7. 13. Color of the bathtub ring left by Cat in the Hat
Down
  1. 2. Something the king ordered his magicians to make
  2. 3. Bartholomew Cubbins had ______
  3. 4. The King in the King's Stilts
  4. 6. Did I ever tell you how ___ you are?
  5. 8. Number years Grinch had put up with Christmas
  6. 11. Lazy bird who left Horton to hatch her egg
  7. 12. A person's a person no matter how...