John Zachary Young - Known as "Jay-Zed" within zoology circles.  The discoverer of the giant axon within certain squid sub-species (e.g., 
Loligo Forbesii) in the 1930's. This paved the way for the work of 
Andrew Huxley, and 
Alan Hodgkin's work on brain function and information transmission within the brain.
1907 - 1997
 
Neurologist.
 -  1931-1945: Fellow of Magdalen College
 
-  1945-1974: Professor of Anatomy, University College London
 
-  1975-: Emeritus Professor
 
-  1976: became an Honorary Fellow.