According to British sources the British brig Manly was grounded off Rysum and captured by the Dutch in January 1806, She was a gunbrig/gunboat of the Archer-class, launched at Dudman, Deptford 7th May 1804 and commissioned May 1805. Her first commanding officer was lieutenant George MacKay, later succeeded by lieutenant Martin White. Her dimensions were 80'1" x 22'6" x 9' 5½” with a builders measurement of 177 tons and 10-18pdr carronades and 2-12pdr. She was taken into Dutch naval service until recaptured in the North Sea 1 January 1809.
In the meeting at the Dutch Naval Department 31 December 1805 a report of 1st lieutenant IJsbrands of the gunboat Vos, commanding officer of the vessels serving off Delfzijl, dated 25 December was discussed. This lieutenant arrived 19th December off the Knock and spoke there the crew of a boat of the galley Noodweer. The latter found off the eastcoast a grounded brig flying American colours but when they approached the brig appeared to be British. The Dutch pilot of the galley L. Abrahams was forced to stay on board of the British ship which hoped to come afloat again. The 1st lieutenant went back to Delfzijl for reinforcement from the galley Noodweer, all together 14 men and 6 volunteers. Going back the same day they meet a boat of the British brig with on board captain Martin White, boatswain Peter Graij, gunner James Robinson and sailors Robert Telford and Joh Wilcolf. The British thought that the approaching gunboat was a merchant ship or lighter, but quite soon they found out being wrong. They were arrested and sent to Delfzijl. White asked for his clothes and money, but the gunboat Vos had to return when the brig was firing at her. When the Vos returned back at Delfzijl 3 galleys were fitted out and 21 December sent to the brig. Due to contrary winds those galleys arrived 22 December at the brig which proved to be the Manly but which was abandoned without a trace of the crew. She was seized and later taken into Dutch naval service. She was described by 1st lieutenant IJsbrands as a “zeer schoon en waarschijnlijk nieuw gebouwd vaartuig weinig minder dan de Ajax”. A translation would be a very beautiful and probably new built vessel which was comparable with the Ajax. The Manly was armed with 11-15pdr carronades and 2-15pdr of which the latter were dropped in sea. Presumably the Dutch 20-guns corvette Ajax was meant, built 1796 at Harlingen.
In the meeting at the Dutch Naval Department 31 December 1805 a report of 1st lieutenant IJsbrands of the gunboat Vos, commanding officer of the vessels serving off Delfzijl, dated 25 December was discussed. This lieutenant arrived 19th December off the Knock and spoke there the crew of a boat of the galley Noodweer. The latter found off the eastcoast a grounded brig flying American colours but when they approached the brig appeared to be British. The Dutch pilot of the galley L. Abrahams was forced to stay on board of the British ship which hoped to come afloat again. The 1st lieutenant went back to Delfzijl for reinforcement from the galley Noodweer, all together 14 men and 6 volunteers. Going back the same day they meet a boat of the British brig with on board captain Martin White, boatswain Peter Graij, gunner James Robinson and sailors Robert Telford and Joh Wilcolf. The British thought that the approaching gunboat was a merchant ship or lighter, but quite soon they found out being wrong. They were arrested and sent to Delfzijl. White asked for his clothes and money, but the gunboat Vos had to return when the brig was firing at her. When the Vos returned back at Delfzijl 3 galleys were fitted out and 21 December sent to the brig. Due to contrary winds those galleys arrived 22 December at the brig which proved to be the Manly but which was abandoned without a trace of the crew. She was seized and later taken into Dutch naval service. She was described by 1st lieutenant IJsbrands as a “zeer schoon en waarschijnlijk nieuw gebouwd vaartuig weinig minder dan de Ajax”. A translation would be a very beautiful and probably new built vessel which was comparable with the Ajax. The Manly was armed with 11-15pdr carronades and 2-15pdr of which the latter were dropped in sea. Presumably the Dutch 20-guns corvette Ajax was meant, built 1796 at Harlingen.