Curtis Judson Humphreys (17 February 1898 – 22 November 1986) was an American physicist born in Alliance, Ohio, USA and educated at the University of Michigan.
[1] Humphreys married Jeanetta Mae Raum, with whom he had a son Richard and three daughters, Jean, Katherine, and Jamie.
He credited the Corona Lab program with the establishment of the atomic wavelength standard in the infrared.
Humphreys attended the Rydberg Centennial Conference on Atomic Spectroscopy in 1954, which at the time was the most distinguished group of spectroscopic and atomic physicists ever assembled, and included the eminent Niels Bohr.
Humphreys is the author of many scientific research articles and books including First spectra of neon, argon, and xenon 136 in the 1.2–4.0 μm region, written in 1973 while he was at Purdue University, Lafayette, Indiana.