Professor Harry (Henry) Jones died on August 24, 2015, at 70 years of age. He was a professor of condensed matter physics at the Clarendon Laboratory, Oxford University, where he worked for 44 years until his retirement in 2012. While at Oxford his main research interests were in high magnetic fields, superconductivity and cryogenics. Jones also led the High Magnetic Fields and Superconductivity Group, de facto the UK National High Magnetic Field Laboratory, for almost 30 years and was chairman of the British Cryogenics Council (BCC) from 2005 to 2014.

Jones’ career began with recruitment from the Atomic Energy Research Establishment at Harwell and a position in its Electronics and Applied Physics Division. In 1968, he joined the Magnet Group at Oxford University and helped equip the laboratory with superconducting magnets that including the mobile 16.5 T magnet system, the world’s first superconducting magnet above 15 T as well as the world’s first operational hybrid magnet.

In 1987, Jones pioneered the development of a unique high strength composite copper and steel conductor that broke the 50 T barrier for pulsed fields and eventually lead to the world’s first non-destructive measurements in magnetic fields above 75 T. He was always interested in developing novel difficult measurements and was recognized as one of the world’s experts for accurate measurements of the critical current density and induced resistive transition of both low temperature and high temperature superconductors.

Jones served on numerous technical committees and produced over 150 refereed scientific publications. As a research supervisor and leader he is remembered for his intense curiosity and drive to discover new and useful science. He was an inspirational colleague and researcher, possessed of strong personal warmth and good humor.