Hubert Morse Blalock, Jr. (August 23, 1926 — February 8, 1991) was an American sociologist who was internationally known for his work on statistical research methods.[1][2] He was a professor of sociology at the University of Washington,[1] president of the American Sociological Association[3][1] and a member of the National Academy of Sciences.[1] According to the National Academies Press, Blalock Hubert "played a major role in shaping the field of sociology during the latter half of the twentieth century".[2]