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John Robertson ( -1872) of Robertson and Co
1872 Obituary 
Mr. John Robertson, late shipbuilder in Greenock, died at Dunoon, last week, at an advanced age.
The deceased gentleman was well known in Greenock and on the Clyde as a most eminent designer of steam and sailing vessels, and many of his models plying at present on the river, such as the Gael, Kintyre, Sultana, &c., are recognised as being very fine specimens of marine architecture.
He was held in much esteem by a numerous circle of friends.