Answer:
Sacagawea
Explanation:
While at Fort Mandan, Lewis and Clark met French-Canadian trapper Toussaint Charbonneau and hired him as an interpreter. They allowed his pregnant Shoshone Indian wife, Sacagawea, to join him on the expedition. Sacagawea had been kidnapped by Hidatsa Indians at age 12 and then sold to Charbonneau.
