by John Marshall, Royal Naval Biography — Duncan… (1823)
“ From the foregoing statement, it will appear very evident to our readers, that Captain Duncan, although he never had the good fortune to encounter a frigate at sea, was both active and successful in coast operations against the enemy: he did as much along shore as any officer we have ever heard of. Having no frigates to fight, he never lost an opportunity of attacking the enemy’s convoys in their own ports, destroying batteries, and cutting out work for himself in every possible shape. ”
