Physically, Smith was undersized and had a curvature of the spine which kept him from being drafted (a circumstance that later would disqualify him from benefitting from the G.I. Bill). During World War II he took a job as a mechanic working nights on the construction of the tight, hard-to-reach interior of Boeing bomber planes, for which his short stature suited him. Smith used the money he made from his job to buy blues records. The money also enabled him to study anthropology at the University of Washington in Seattle for five semesters between 1942 and the fall of 1944. He focused on American Indian tribes concentrated in the Pacific Northwest, making numerous field trips to document the music and customs of the Lummi, whom he had gotten to know through his mother's work with them.