Mark Herbert Williamson OBE is Professor Emeritus of Biology at the University of York, England.
[2][3] Williamson attended Christ Church, Oxford where he gained a BA degree in 1950 and received a D.Phil.
in 1958, having been a Departmental Demonstrator in the Department of Zoology, University of Oxford since 1952.
[1] Between 1958 and 1962, Williamson was a Senior/Principal Scientific Officer (SSO/PSO) at the Oceanographic Laboratory of the Scottish Marine Biological Association.
In 1963, he was appointed Professor at the Department of Biology, University of York, on its founding.