John Lighton Synge

John Lighton Synge FRS FRSC PRIA HonFTCD
From left: Rainer Sachs, Ivor Robinson, Art Komar, John Lighton Synge, in 1962
Born	(1897-03-23)23 March 1897 Dublin, Ireland
Died	30 March 1995(1995-03-30) (aged 98) Dublin, Ireland
Education	St Andrews College, Dublin
Alma mater	Trinity College Dublin (BA, MA, ScD)
Known for	Synge's theorem
Spouse	Elizabeth Allen ​ (m. 1918)​
Children	3, including Cathleen Synge Morawetz
Relatives	Hugh Hamilton (great-great-great-grandfather) John Millington Synge (uncle) Edward Hutchinson Synge (brother)
Awards	FRS (1943) FRSC (1943) Henry Marshall Tory Medal (1943) Boyle Medal (1972)
Scientific career
Fields	Mathematics Physics
Institutions	Trinity College Dublin University of Toronto Princeton University Brown University Ohio State University Carnegie Institute of Technology Dublin Institute for Advanced Studies

John Lighton Synge FRS FRSC PRIA HonFTCD (/sɪŋ/; 23 March 1897 – 30 March 1995)^[1] was an Irish mathematician and physicist, whose seven-decade career included significant periods in Ireland, Canada, and the USA. He was a prolific author and influential mentor, and is credited with the introduction of a new geometrical approach to the theory of relativity.^[1]