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Thomas Henry Johnson (c1894-1922)
1922 Obituary 
THOMAS HENRY JOHNSON died on February 17, 1922, in St. Bartholomew's Hospital, at the age of 28.
First appointed to the Junior Staff of the Northampton Polytechnic Institute, Clerkenwell, E.C., in 1913, he spent two years in the laboratories of the Technical Chemistry Department, resigning in 1915 to take the appointment of chemist and metallurgist to Aerators, Ltd., of Edmonton. A war experience of over four years here gave him a very close contact with, and intimate knowledge of, problems associated with the white metals.
Mr. Johnson returned to the Northampton Polytechnic Institute in 1919 as a part-time demonstrator in Technical Chemistry and researcher on the hydrometallurgical treatment of zinc ores ; and in September of the same year was appointed full-time lecturer and demonstrator in the Department - holding the appointment until his death, which occurred after a very brief illness. It is unfortunate that no permanent record of the experimental work upon which he had been engaged had been made.
Mr. Johnson was elected a member of the Institute of Metals on December 29, 1920.