Brunswick first appeared in Lloyd's Register (LR) with J. Douglas, master, T.Hibbert & Co., owner, and trade London–Jamaica.

[2] After the outbreak of war with France Captain John Graham Douglas acquired a letter of marque on 10 October 1793.

[1] The size of the crew previewed on the letter of marque suggested that the initial plan was that Brunswick would cruise as a privateer.

[5] In 1825 Brunswick, Robert Blake, master, carried 343 assisted immigrants from Cork to Quebec under a scheme organized by Peter Robinson.

[8] Brunswick, Poulton, master, had sailed to the Chincha Islands to gather guano.