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Henry Thomas Sisson (c1872-1943)
1943 Obituary 
HENRY THOMAS SISSON. Wh.Ex.. whose death in his seventy-first year occurred at Cheltenham on 3rd January 1943, was elected a Member of the Institution in 1933. He received his technical education at the Durham College of Science and at Rutherford College, Newcastle upon Tyne. On the completion of a five years' apprenticeship with Messrs. William Doxford and Sons, Sunderland, in 1893 he entered the engineering works established by his brother, the late Mr. W. Sisson, M.I.Mech.E., at Gloucester and was employed in the drawing office, remaining there until 1898.
During this period he continued his technical studies and in 1897 obtained a Whitworth Exhibition. In the following year he began a connection with the Washington Chemical Company, Co. Durham, which was to last for over twenty years, his first appointment being that of works draughtsman and assistant manager, in which position he was responsible for the design, erection, and equipment of all buildings and machinery for the new works at the firm's branch at Bootle. Three years later he was made chief engineer and business manager, and in addition acted as consulting engineer to the company.
In 1920 Mr. Sisson resumed his association with the family firm at Gloucester, and during the last twenty years of his career successively filled the positions of works manager, managing director, and finally, in 1935, chairman of the company. He was also chairman of the Palatine Engineering Company, Ltd., Bootle.