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John Arthur Clements (c1889-1934) of the Brown-Firth Research Laboratories
1934 Obituary 
JOHN ARTHUR CLEMENTS died in a Chesterfield nursing home on October 13, 1934, after a long illness; he was forty-five years of age.
He was the youngest son of the late Mr. J. H. Clements, and was one of a family of brothers who have gained positions of distinction in the iron and steel industry. He received his early training as an analytical and research chemist in the laboratory of the Sheepbridge Coal and Iron Co., in which firm he rose to the position of chief chemist.
Later he was engaged with the Staveley Coal and Iron Co.
During the war he was attached to the scientific staff of the Government explosives factories at Queensferry and Pembrey. After the war he joined the staff of the Brown-Firth Research Laboratories in Sheffield, where he took an important part in the development of the corrosion-resisting and other special steels manufactured by Messrs. Thomas Firth & Sons, Ltd., and later by the combined firms Messrs. Thos. Firth and John Brown, Ltd.
Mr. Clements took a keen interest in technical and scientific education, and was a member of the• Chesterfield District Higher Education Committee and of the Board of Governors of the Chesterfield Technical College. He held the associateship of Sheffield University, and was a Fellow of the Institute of Chemistry.
He joined the Iron and Steel Institute in 1913.