Sir David Gwynne Evans was a British microbiologist. He studied at Manchester University from 1930 to 1933, when he graduated with a degree in physics and chemistry, and he gained his MSc in 1934. He finished his PhD in 1938 and began working at the National Institute for Medical Research

National Institute for Medical Research

The National Institute for Medical Research, commonly abbreviated to NIMR, is a medical research facility situated in Mill Hill, on the outskirts of London, England. It is mainly funded by the Medical Research Council, or MRC, and is its largest establishment and the only one designated as an...

 two years later. He left in 1947 to become areader in the bacteriology department at Manchester University, but returned to the NIMR in 1955 as director of the biological standards department. In 1961 he became professor of bacteriology and immunology at London School of Hygiene & Tropical Medicine

London School of Hygiene & Tropical Medicine

The London School of Hygiene & Tropical Medicine is a constituent college of the federal University of London, specialising in public health and tropical medicine...

, a position he left in 1971 to become director of the National Institute for Biological Standards and Control. He was awarded the Buchanan Medal

Buchanan Medal

The Buchanan Medal is awarded by the Royal Society every year "in recognition of distinguished contribution to the medical sciences generally". The award was created in 1897 from a fund to the memory of London physician Sir George Buchanan . It was to be awarded once every five years, but since...

 of the Royal Society

Royal Society

The Royal Society of London for Improving Natural Knowledge, known simply as the Royal Society, is a learned society for science, and is possibly the oldest such society in existence. Founded in November 1660, it was granted a Royal Charter by King Charles II as the "Royal Society of London"...

in 1977 for his work, and retired in 1979.