James Woods Babcock (1856−1922) (left), with Robert Wilson Jr. (1867−1946). Babcock, who was superintendent of the South Carolina State Hospital for the Insane, spearheaded the early American response to pellagra. Wilson, who later served as vice president of the American Clinical and Climatological Association, was chairman of the South Carolina State Board of Health. Courtesy: South Caroliniana Library, University of South Carolina, Columbia, S.C.