[3] He began his independent academic career at UCL, where he met Egon Pearson, with whom he collaborated to produce the classic two-volume Biometrika Tables for Statisticians, and also developed Hartley's F-max test[4] for equality of variances.

In the ensuing decade and a half, he built his initial faculty of four into a group of 16, directed more than 30 doctoral students, and attracted significant research funding.

"[6] Hartley remained active at Texas A&M until 1979, when he accepted a full-time visiting professor position at Duke University while also serving as statistician with the National Testing Service in Durham, N.C., until his death on December 30, 1980.

A prolific author, Hartley published nearly 100 papers (three-quarters of them during the final two decades of his career) in top-tiered journals until his mandatory retirement in 1977.

Widely regarded as not only a brilliant academician, but also a warm and caring human being, Hartley was deeply committed to all phases of his profession, including education, research, and delivery of knowledge and advice to users of statistics.