The Marjory Stephenson Prize is the principal prize of the Microbiology Society, awarded for an outstanding contribution of current importance in microbiology.
Marjory Stephenson was the second president of the Microbiology Society (1947 - 1949) and a distinguished pioneer of chemical microbiology.
Source: Microbiology Society In 1988, the Marjory Stephenson Memorial Lecture was renamed the Marjory Stephenson Prize Lecture.
Copies of most of these lectures can be found on the Microbiology Society webpage