Ennis was born in West Calder, Scotland.[2] He was descended from a family of engineers on his maternal line.[3] His father was a builder from County Meath in Ireland.[4] He was educated at Gavieside School, but due to his family's poor circumstances he left at the age of 12.[5] His first job was to work as a drawer in a local shale pit.[6] He emigrated with his family to Rochester in the United States at the age of 15.[5] He attended a technical college in Rochester and was apprenticed to an engineering firm.[6]
Ennis developed his reputation when he patented a new angle iron whilst employed at the Carnegiesteel works in Pittsburgh.[6] Ennis managed one of the American Bridge Company's largest sites by 1900.[2] Ennis joined Dorman Long in 1903 as superintendent in charge of bridge and constructional works.[7] In 1905 he was made works manager.[7] Ennis became general manager of the company in 1915 and a company director in 1924.[8]
Ennis was appointed OBE in 1918, in recognition of his conversion of the Dorman Long works into a munitions manufacturing site during World War One.[9]
From 1924 to 1932 Ennis was resident in Australia to manage the construction of Sydney Harbour Bridge.[10][11]
Upon his return to Britain in 1932, Ennis was appointed managing director of Dorman Long.[12] Under his tenure the firm built a large steelworks at Warrenby, Redcar.[13]
Brearley, Joan McDonald; Ennis, Lawrence (1982), The bridge opened : official opening, 19th March, 1932, Pylon Press, ISBN978-0-9593592-0-6
As joint author – in Minutes of Proceedings of the Institution of Civil Engineers, Vol. 238 – Session 1933-1934, Pt. 2. London: 1935. 2) Sydney Harbour Bridge: Manufacture of the Structural Steelwork and Erection of the Bridge, by R. Freeman and L. Ennis;[15]
^Freeman, Ralph; Bradfield, J. J. C. (John Job Crew), 1867–1943; Pain, John Freeman; Roberts, Gilbert; Ennis, Lawrence (1935), [Sydney Harbour Bridge] : by Ralph Freeman [and others], Institution of Civil Engineers, retrieved 5 May 2012{{citation}}: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)
Strategi Solo vs Squad di Free Fire: Cara Menang Mudah!