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Nicholas Denis Greyling (1883-1950)
1952 Obituary 
"NICHOLAS DENIS GREYLING, who was born in Russia in 1883, received his education at a gymnasium and technological institute in that country, and served an apprenticeship in the locomotive works at Charcoff, from 1905 to 1907. He then found employment as junior draughtsman with the Broken Hill Proprietary Company at Port Pixie, South Australia. After further experience in a similar capacity with the Worthington Steam Pump Company, Ltd., New Jersey, United States, and as designer of direct-current motors for the General Electric Company, Ltd., Schenectady, New Jersey, he came to Great Britain and enlisted in 1916 in the Royal Engineers. He was subsequently granted the rank of lieutenant and saw service on the Salonika front and in the armies of the Black Sea and the occupation of Turkey.
Mr. Greyling was demobilized in 1920 and in the following year joined the staff of Babcock and Wilcox in London as erector. While with this concern he was for some time with the Control Commission in Berlin, working in the same field. He was appointed mechanical and testing engineer in 1924 and held this position for twenty-three years. In this capacity his work entailed the testing and starting up of steam and electric power plants, which took him to many of the countries on the Continent. Since then he had been in practice on his own account as a consultant in London, specializing in new boiler installations and the modernization of boiler plant equipment. Mr. Greyling had been an Associate Member of the Institution since 1931. His death occurred suddenly on 9th December 1950."