What was the native tribe of Sacagawea, the Indian woman who helped guide Lewis and Clark on their historic 1804 journey of discovery? August 17, 2017 By Show answer Shoshone. She was captured by the Hidatsas and sold into marriage to French Canadian Trader/trapper Toussaint Charbonneau, who subsequently joined the Lewis and Clark expedition as a paid interpreter More American History QuestionsMore History Questions