She wrote The Conquest: The True Story of Lewis and Clark (1902), a novel that popularized Sacagawea's name.
She wrote Sacajawea: Guide and Interpreter of Lewis and Clark (1933), a biography that claimed Sacajawea died in Wyoming in 1884.
He was a Dakota Sioux physician who was hired by the Bureau of Indian Affairs to locate Sacajawea's remains in 1925.
He was a U.S. Army surgeon who compiled the dictionary Ethnography and Philology of the Hidatsa Indians (1877), which included the words for 'bird' and 'woman'.
She was a sculptor who created the statue Sacajawea and Jean-Baptiste (1905), which was unveiled in Portland, Oregon.