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David Doig McLellan (1862-1937), managing director of the Clyde Structural Iron Co
1937 Obituary 
By the death of Mr. David Doig McLellan, managing director of the Clyde Structural Iron Company, Ltd., at his home in Glasgow on Easter Sunday, the world of engineering has lost a personality that was as kindly and respected as it was widely known.
Mr. McLellan was born in 1862, and was educated at Allan Glen's School. Thereafter he entered the service of A. and J. Main and Co., Ltd., structural engineers, Glasgow, with whom he served his apprenticeship.
He left that firm, and in 1898 formed the Clyde Structural Iron Company, Ltd., of which he was managing director until his death. From the foundation of the firm Mr. McLellan took a prominent and active part in the Scottish structural engineering trade.
In 1929 he produced a novel design for the proposed Finnieston Bridge in Glasgow, which created much interest among engineering circles. The design showed spiral ramps on each bank of the river instead of straight ramps. It was claimed that it would provide better gradients for horse traffic, and that much time would be saved in approaching the bridge, while the cost of the bridge would be greatly reduced, in view of the fact that practically no property would need to be acquired. In this connection it may be noted that the Corporation has so far purchased property in the neighbourhood of the proposed bridge at a cost of over £400,000.
Mr. McLellan was a member of the Institute of Engineers and Shipbuilders in Scotland, and since 1912 had been chairman of the Kuala Pertang Syndicate, Ltd