Walter Francis Willcox (March 22, 1861 – October 30, 1964)[1] was an American statistician. He was professor of economics at Cornell University.[2] He founded the statistical research office in the U.S. Census Bureau.[3]
He published The Divorce Problem, A Study in Statistics (1891; second edition, 1897).[5] In his research on divorce, he estimated that one in 12 marriages in the United States ended in divorce in 1909 and that if trends continued, approximately one in two marriages would end in divorce.[6]
He also published Supplementary Analysis and Derivative Tables, twelfth census (1906). He contributed the "Negroes in the United States" subsection to the "Negro" article [7] in the 1911 Encyclopædia Britannica. (The main section, by Thomas Athol Joyce,
is of interest today for the insight it gives into racial prejudices of the time.)
Willcox initiated the first statistics course at Cornell in 1892, one of the earliest university courses in statistics in the United States, and one among 16 universities with such courses in the 1890s.[a] His research interest was in vital statistics. Emil Julius Gumbel described his body of work, collected in Studies in American Demography, as "the type of old-fashioned writings which will continue to be of value notwithstanding all progress achieved in mathematical statistics."[8]
In 1911, Willcox claimed there would be "no children in the United States under five years of age" by the year 2020. Perpetuating ideas of race suicide, Willcox erroneously explained that the United States' birth rate meant that importing babies from France would be the only option for maintaining population levels.[9]
After serving as one of five chief statisticians for the U.S. Census in 1900,[10][11] Willcox proved that for any method of apportionment that involves rounding, a priority list can be created by dividing the rounding point into each state's population,[12] by which each seat can be assigned in successive order based on each state's priority listings.
Willcox was an advocate for reducing the number of seats in the House of Representatives.[2] He proposed to reduce one seat per year.[2]
Willcox died in Ithaca, New York[2] leaving 3 sons and one daughter. These were Mary Goodenow Willcox, Bertram Francis Willcox (1895-1987) who practiced law in New York before taking up a position at Cornell,[13]Alan Willcox (1901-1978), who served as general counsel to the U.S. Department of Health, Education and Welfare, and William B. Willcox (1907-1985) who was an academic historian.[14]
^Rice, Stuart A (1964). "Walter Francis Willcox, March 28, 1861 - October 30, 1964". Revue de l'Institut International de Statistique / Review of the International Statistical Institute. 32 (3). ISI: 340–346. JSTOR1401885.
^ abLeonard, William R. (1961). "Walter Francis Willcox: Statist". The American Statistician. 15 (1). American Statistical Association: 16–19. doi:10.2307/2682503. JSTOR2682503.