H. Stanley Allen

Herbert Stanley Allen FRSE FRS (29 December 1873 – 27 April 1954) was an English physicist from Cornwall noted as a pioneer in early X-ray research, working under J. J. Thomson at the University of London and alongside Nobel laureate Charles Glover Barkla at the University of Edinburgh. A supporter of the Parson magneton, Allen was also an early contributor to the field of quantum mechanics. Provided by Wikipedia