Seven Years War Adam Duncan, 1st Viscount Duncan

in august 1755 followed keppel swiftsure, , in january 1756 torbay, in continued till promotion commander s rank on 21 september 1759, , during time present in expedition basque roads in 1757, @ reduction of gorée in 1758, , in blockade of brest in 1759, within 2 months of battle of quiberon bay, promotion excluded him.

from october 1759 april 1760 had command of royal exchange, hired vessel employed in petty convoy service miscellaneous ship s company, consisting large extent of boys , foreigners, many of whom (he reported) not speak english, , impressed idea had been engaged merchants whom ship hired not subject naval discipline. seem misunderstanding merchants on point cause of ship s being put out of commission after few months.

as commander duncan had no further service, on 25 february 1761 posted , appointed hms valiant, fitting keppel s broad pennant. in had important share in reduction of belle Île in june 1761, , of havana in august 1762. returned england in 1763, and, notwithstanding repeated request, had no further employment many years.