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| Sir James Lumsden (1818-1879), Lord Provost of Glasgow 1866-69 and Chairman of the Glasgow & South Western Railway 1870-79 |
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| Sir William Lorimer (1844-1922), Chairman of the North British Locomotive Co. and a Director of the Glasgow & South Western Railway |
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| James Stirling (1835-1917), Locomotive Superintendent of the Glasgow & South Western Railway, 1866-98 |
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| F. W. Hutchinson, Secretary of the Portpatrick & Wigtownshire Joint Committee |
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