George Roger Clemo

George Roger Clemo FRS (2 August 1889 – 2 March 1983) was a British organic chemist.

He was born in Slapton, Devon, the eldest son of farmer George and Blanche Ellen (née Hyne) Clemo. He attended Kingsbridge Grammar School and went on to study science at the Royal Albert Memorial College Exeter, a forerunner of Exeter University, gaining a Bachelor of Science in 1910. He then commenced training to be a teacher and in 1911 was appointed deputy master at Penzance County School. In 1916, as part of the war effort, he joined the laboratory of William Henry Perkin, Jr. to work on dyestuffs. In 1922 he entered Queen's College, Oxford and gained an Oxford B.Sc. and DPhil, the latter under the supervision of William Henry Perkin, Jr.

In 1925 he accepted the position of Director of Research at the British Dyestuffs Corporation in Manchester. He was promoted to head of the Chemistry Department in 1932, and remain at the college until his retirement in 1954.

He was elected a Fellow of the Royal Society

Clemo was a keen rugby player and represented Cornwall twice in 1913. He married Angela Mary Gertrude Evans in 1921; they had three sons and a daughter.