1st voyage transporting enslaved people (1801–1802): Captain David Marshall acquired a letter of marque on 2 July 1801.

[5] Diligent acquired captives at Bonny Island and sailed from there in company with Molly and some other slave ships.

[6] After the resumption of war with France, Captain David Marshall acquired a letter of marque on 23 May 1803.

[5] In December 1803, Lloyds List reported that Diligent, Marshall, had captured two Dutch Guineamen, and carried them into Bonny.

[8] In January 1804, Lloyd's List reported that Aimable Julie, prize to Diligent, Marshall, master, had arrived at Barbados.

[9] Then Lloyd's List reported that Deux Amis, prize to Diligent, Marshall, master, had wrecked on the Bonny Bar.

[7] She returned with a cargo of sugar, coffee, cotton, and six elephant teeth (ivory tusks).

4th voyage transporting enslaved people (1804–loss): Captain John Preston acquired a letter of marque on 13 July 1804.