Herman Otto Hartley

H.O. Hartley
H.O. Hartley
Born	Hermann Otto Hirschfeld; April 13, 1912; Berlin, Germany
Died	December 30, 1980 (aged 68); Durham, North Carolina
Alma mater	University of Berlin; University of Cambridge; University College London;
Known for	Pearson Hartley Biometrika Tables, Greenwood Hartley Guide to Tables in Mathematical Statistics, mathematical foundations for correspondence analysis, pioneer in the use of EM algorithm, F-max test, survey sampling, mathematical programming and optimization, estimation of variance components, analysis of incomplete data, stochastic PERT
Awards	Wilks Memorial Award (1973); Fellow of Institute of Mathematical Statistics (1949); Fellow of American Statistical Association (1953); Elected Member of International Statistics Institute; President, Eastern North American Region International Biometric Society (1959); President, American Statistical Association (1979);
	Scientific career
Fields	Statistics, mathematics
Institutions	Harper Adams Agricultural College; Scientific Computing Service; University College London; Iowa State University; Texas A&M University; Duke University;
Thesis	Calculus of Variations and Optimal Control; Statistical Distribution Functions; (1934 and 1940)
Doctoral advisor	Adolf Hammerstein (in Berlin); John Wishart (in Cambridge);
Doctoral students	George Box; Herbert A. David;

Herman Otto Hartley (born Hermann Otto Hirschfeld in Berlin, Germany; 1912–1980) was a German American statistician. He made significant contributions in many areas of statistics, mathematical programming, and optimization. He also founded Texas A&M University's Department of Statistics.

Hartley's earliest papers appeared under the name H.O. Hirschfeld. He translated his German last name Hirschfeld (Hirsch = Hart, Feld = field = lea = ley) into English.