| 1. | William Clark was the keeper from 1877 until he drowned in 1891.
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| 2. | In his Cash Book, William Clark spells Sacajawea with a J.
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| 3. | The explorer William Clark was a younger brother of George Rogers Clark.
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| 4. | Two companion 37-cent stamps showed portraits of Meriwether Lewis and William Clark.
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| 5. | Lewis invited his army friend William Clark to help lead the trip.
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| 6. | William Clark, of the famous Lewis and Clark Expedition, resided in Christiansburg.
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| 7. | William Clark died before January, 1704, when his will was proved.
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| 8. | William Clark nicknamed the baby Pomp, meaning first born in Shoshone.
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| 9. | Meriwether Lewis and William Clark were a parable waiting to happen.
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| 10. | He and his wife had a son named William Clark Junior in 1828.
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