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Louis John Simon (c1880-1949)
1950 Obituary 
"Louis JOHN SIMON served his apprenticeship with Messrs. P. Simon and Company, London, electrical and mechanical engineers, from 1895 until 1900, when he joined the National Gas Engine Co as an improver, whose service he left three years later to become assistant to the London manager of the Forward Engineering Co, Birmingham. Subsequently, he occupied the positions of manager in London for Messrs. Kynochs, Ltd., and for Messrs. Motor Plants, Ltd., electrical and mechanical engineers, also of Birmingham.
In 1908 he went into business on his own account as a consulting engineer, and eleven years later he established an engineering works, which he disposed of in 1937. More recently he had been engaged in developing his own inventions. Mr. Simon, whose death occurred on 18th November 1949, at the age of sixty-nine, was elected an Associate Member of the Institution in 1912. He was also an Associate Member of the Institution of Electrical Engineers."