Westward expansion

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Across
  1. 4. Co leader of the expedition
  2. 6. Leader or expedition
  3. 7. A young officer
  4. 8. A trail
  5. 9. North American women
Down
  1. 1. western fur traders
  2. 2. Purchase that gave America a lot more land
  3. 3. Famous hunter
  4. 5. the expedition