Adam Duncan, 1st Viscount Duncan 1792
Admiral Adam Duncan (1731-1804), 1st Viscount Duncan
Adam Duncan, 1st Viscount Duncan 1798
Adam Duncan, 1st Viscount Duncan of Camperdown, 1731 - 18...
Adam Duncan, 1st Viscount Duncan of Camperdown, 1731 - 18... 1798
Captain Adam Duncan, later Admiral Duncan and 1st Viscoun... 1750
