He was attached to the Mediterranean Squadron from June 1804 to July 1806, participating in the attacks on Tripoli on board Essex.

Sinclair conducted a hit-and-run raid at St. Marys River, Upper Canada, capturing a small merchantman, the Mink.

After capturing the merchantman in the raid, Arthur Sinclair withdrew back to American lines in Michilimackinac.

Sinclair sent Daniel Turner with a detachment of seamen alongside regulars under Andrew Holmes to penetrate deeper into enemy territory.

Arthur Sinclair commanding 5 vessels transported 550 American regulars and 250 militia led by Lt.

The Americans gave up their objective after suffering heavy casualties and retreated to the ships of Sinclair's fleet.

Then Sinclair moved on with his 3 remaining vessels Niagara, Scorpion and Tigress to Nottawasaga to attack a British outpost.

The British sailors and militia realizing they could not hold off the American assault any longer burned their schooner Nancy and blew up their blockhouse before retreating suffering 1 killed and 1 wounded.

Sinclair instructed Turner to intercept any British supply shipping and then return to Detroit when the weather turned bad.

Arthur Sinclair withdrew back to Detroit in his vessel Niagara with the three newly captured British guns.

It was while there, that he conceived the idea of a Nautical School and was allowed to set one up on board the frigate Guerriere, for the education and development of young naval officers.

The first Arthur Sinclair, of Scalloway, in Shetland, sailed with Commodore George Anson in 1740, on a mission to capture Spanish possessions in the Pacific, during Britain's war with Spain.

Arthur Sinclair II married first, Elizabeth, daughter of General John Hartwell Cocke, of Mt Pleasant, in Surry County.

They had two children, twins, Robert Carter Nicholas d 1806 and Augusta (died 3 weeks after birth) Mar 1802.

Arthur Sinclair (29 Nov 1810 - 14 Jan 1865), Commander USN, CSN, served on the CSS Alabama, married, 20 Apr 1835, Lelia Imogene Dawley of Norfolk.

George Tarry Sinclair (29 Sep 1816 - 25 Jul 1885) LT USN, CSN 2 May 1843, Mary Thompson (5 Jan 1825 - 6 Nov 1888) 5.

Dr. William Beverly Sinclair (22 Jan 1818 - 27 Sep 1895), surgeon, USN, CSN, a prominent physician, married 11 Nov 1844, Lucy Franklin Read Jones 6.