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Louis Barrow (c1865-1948)
1949 Obituary 
Louis BARROW, whose death occurred at Little Comberton, Worcestershire, on 6th April 1948, in his eighty-third year, was for thirty years chief engineer to Messrs. Cadbury Brothers, Ltd., of Bourneville, and for the last twelve years of this period had, in addition, acted in the same capacity for Messrs. J. S. Fry and Sons, Ltd., of Bristol. He received his theoretical training (which extended to thirteen years) at the Mason College, Birmingham, and served a year's apprenticeship at the Soho Works of Messrs. Tangyes, Ltd., in Birmingham.
He then began his professional career as a cycle manufacturer and established the firm of Messrs. Guest and Barrow, which made the Ariel cycle, the large diameter tubes of which, though at first derided, were the prototype of those in general use at the present day. He returned to Messrs. Tangyes in 1894 as a junior draughts man and was promoted to the post of head draughtsman three years later.
He began his long connection with Messrs. Cadbury in 1900, for whom his duties as chief engineer included the provision of all kinds of grinding and refrigerating machinery in addition to the heating and ventilation of works covering a very large area. During his tenure of office he was also responsible for the installation of an electric light and power plant. Mr. Barrow took a great interest in the proceedings of the Institution, of which he was elected an Associate Member in 1900, his transference to Membership being dated four years later. He was also a Fellow of the Geological Society.