James Kay Graham Watson

Jim Watson, FRS, who published under the name J.K.G. Watson, was a molecular spectroscopist most well known for the widely used molecular Hamiltonians named after him, which are sometimes called "Watsonians" or "Watson Hamiltonians". He began his career at the University of Glasgow, and worked in various places in the UK and USA, but most notably worked as a postdoctoral fellow under Nobel Prize winner Gerhard Herzberg at the National Research Council of Canada in Ottawa, Ontario, where he eventually earned himself a permanent position which he kept until his retirement. He was a Fellow of the Royal Society, the Royal Society of Canada and the American Physical Society.[1] He died in his home in New Edinburgh after a brief illness on 17 December 2020 at the age of 84.[1]