At the time of the 1881 Scotland Census Hugh Cowan, aged 8, born in Mauchline Ayrshire, scholar, was with his parents in New Road, Mauchline.
At the time of the 1891 Scotland Census Hugh Cowan, aged 16, born in Mauchline Ayrshire, engine-fitter apprentice, was boarding with John and Ellen Armour in Holehouse Rd Old Tollhouse, Kilmarnock, Ayrshire.