Admiral Sir James Hillyar KCB KCH was a prominent British Royal Navy officer of the early nineteenth century, who is best known for his service in the frigate HMS Phoebe during the Napoleonic Wars and the War of 1812. While in command of Phoebe, Hillyar was present at the Invasion of Ile de France in 1810, was heavily engaged at the Battle of Tamatave in 1811 and captured the USS Essex off Valparaso in Chile in 1814. In addition, Hillyar was engaged in numerous other operations, his first battle occurring in 1781 off Boston. He remained in the Navy until his death in 1843, and was active at sea during the 1830s, commanding fleets in the North Sea and off Portugal. He was knighted twice and two of his sons later became full admirals, Charles Farrell Hillyar and Henry Shank Hillyar.
Hillyar was born in 1769, son of naval surgeon James Hillyar, at Portsea, Portsmouth, Hampshire. He entered the Navy at just ten years old, serving aboard the frigate HMS Chatham during the American War of Independence. Chatham was employed on the blockade of Boston during the war, and 1781 fought a fierce action against the French frigate Magicienne, capturing the French ship, which was commissioned into the Royal Navy. Chatham was decommissioned in 1783 at the end of the war but Hillyar remained in service, principally on the North American Station, for the next ten years.
Source: Wikipedia