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Arnold Ingram Macnaughton (1899-1948)
1951 Obituary 
"ARNOLD INGRAM MACNAUGHTON, B.Sc., who was born in 1899, was connected with the papermaking industry for the whole of his professional career and in the 1920's won a first prize in papermaking at the City and Guilds Institute.
He received his early education at Merchiston Castle School, Edinburgh, on leaving which in 1917 he enlisted and subsequently was granted a commission in the Royal Garrison Artillery. After his demobilization two years later he began a course of study at the University and Royal Technical College, Glasgow, graduating B.Sc. in engineering in 1922.
On the conclusion of his practical training with Messrs. Robert Craig and Sons, Ltd., Caldercriux, in 1924, he remained with that firm for another year as assistant engineer and manager. He then went to Canada and joined the engineering staff of the Howard Smith Paper Mills. Subsequently he became mill superintendent of the Canada Paper Co, Quebec, with responsibility for production and the inauguration of new equipment.
Returning to England in 1929, he began a connection with Messrs. John Dickinson and Company, Ltd., Croxley Paper Mills, Watford, which lasted for thirteen years. His first appointment was that of works manager and chief engineer. Two years later he was made general manager, a position he retained until 1942 when he joined Messrs. Thomas Owen and Company, Ltd., Ely Paper Works, Cardiff, as managing director.
Since 1944 he had been associated with the Ellangowan Paper Company, Ltd., Milngavie, Scotland. Mr. Macnaughton, whose death occurred on 17th November 1948, was elected an Associate Member of the Institution in 1932 and transferred to Membership ten years later. He was also an Associate Member of the Institution of Electrical Engineers."