Once she had landed the missionaries she sailed to China and took a cargo back to England for the British East India Company.

Duff was originally under the command of P. Gordon, with owner J. Carbine and traded between London and Gibraltar.

Captain James Wilson volunteered his services and the society was able to afford to purchase Duff.

Captain Wilson and Duff left The Downs on 13 August 1796 and by 12 November she was at Rio de Janeiro.

[10] While sailing from Tongatapu to the Marquesas, Wilson became the first European to visit Pukarua, which he found uninhabited and named Searle Island.

In the Fiji Islands Wilson also charted Vanua Balavu, Fulaga, and Ogea Levu.

Duff left China 5 Jan 1798 and reached Malacca on 16 January, the Cape of Good Hope on 17 March, and St Helena on 15 April.

[9] The French privateer Grande Buonaparte captured Duff on 19 February 1799 off Cape Frio near Rio de Janeiro.