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Edward Johnston (1816-1880)
1881 Obituary 
. . . In 1834 he was articled to the late O. D. Owen, and on the expiration of his pupilage was employed on the Chester and Holyhead railway, and on the parliamentary surveys and plans of the Great Northern Railway, the western extension of the Caledonian Railway, and the Central Devon and Cornwall Railway.
From 1850 to 1856 Mr. Johnston was in practice on his. own account, during which time he designed and completed the main drainage of the city of Bangor, the Bangor Waterworks, and the Port Penrhyn branch railway, besides furnishing plans for Port Penrhyn dry docks.
On the 4th of March 1857 he received an appointment as a third-class assistant engineer on the [[Madras Railway]], and attained the rank of first-class on the 13th of June, 1862, remaining in the service of the company till the 6th of January 1872. . . .