Jean-Baptiste Charbonneau, and could travel. When she was only a teenager, Sacagawea left Fort Mandan as the only woman in a large group of men with a young baby on her back to guide them through ...

Sacagawea was pregnant with a child with Charbonneau when they joined the Corps of Discovery. Their son Jean Baptiste Charbonneau was born on February 11, 1805, at Fort Mandan, where the Corps spent a ...