Matilda Coxe Stevenson, who also wrote under the name Tilly E. Stevenson, was an American ethnologist, geologist, explorer, and activist. She was a supporter of women in science, helping to establish the Women's Anthropological Society in Washington DC. Stevenson was also the first woman hired by the Bureau of American Ethnology (BAE) to research southwestern Indigenous people. In doing so, she published multiple monographs and one long text on the Zuni people. Her work was supported by some of her male colleagues at the time and was seen as a contemporary by some of her fellow ethnologists or anthropologists. However, she faced barriers as a woman scientist in the nineteenth and early twentieth centuries; in order to compete, she defied societal expectation which pushed some to regard her as stubborn and aggressive.

The Bureau of American Ethnology was established in 1879 by an act of Congress for the purpose of transferring archives, records and materials relating to the Indians of North America from the Interior Department to the Smithsonian Institution. But from the start, the bureau's visionary founding director, John Wesley Powell, promoted a broader mission: "to organize anthropologic research in America." Under Powell, the bureau organized research-intensive multi-year projects; sponsored ethnographic, archaeological and linguistic field research; initiated publications series ; and promoted the fledgling discipline of anthropology. It prepared exhibits for expositions and collected anthropological artifacts for the Smithsonian United States National Museum. In addition, the BAE was the official repository of documents concerning American Indians collected by the various US geological surveys, especially the Geographical and Geological Survey of the Rocky Mountain Region and the Geological Survey of the Territories. It developed a manuscript repository, library and illustrations section that included photographic work and the collection of photographs.