Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,669 pages of information and 247,074 images on early companies, their products and the people who designed and built them.
Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.
William Harry Johns
1939 M.T. Mech.E., M.Inst.Gas E. (Dist. Member of Council). Engr. and Manager, The Swansea Gas Light Co., Oystermouth Road, Swansea. Private Address: Highmead Bayswater Road, Sketty, Swansea.
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