The present bronze is a reduction of the first working model for the privately commissioned monument planned for and donated to the Plains Indian Museum, Buffalo Bill Cody Historic Center, Cody, Wyoming. Marie, a Shoshone Indian, posed for Jackson's monument depicting the Shosone squaw who led Lewis and Clark on their explorations of North America in the early 19th century.

Sacagawea, First Working Model for a Monument was cast in an edition of forty patinated examples and twenty polychrome examples.