Background
Hewitt was born in Worcester United Kingdom in 1940 and attended The King"s School there.
Hewitt was born in Worcester United Kingdom in 1940 and attended The King"s School there.
He took his undergraduate degree at the University of Birmingham and stayed to complete a Doctor of Philosophy with advisors Kenneth Mather, John Jinks, and Bernard John.
He subsequently gained a Fulbright fellowship to study at the University of California, Davis in 1965-1966. On his return he took up a position at the newly established University of East Anglia, and he was promoted to Professor in 1988. He worked in the School of Biological Sciences until his retirement in 2005, and subsequently maintained a very substantial scientific output as Emeritus Professor.