THORNBOROUGH, Sir Edward, English naval officer, born in England in 1758; died 3 April, 1834. He held the rank of 1st lieutenant on board "The Falcon," one of the vessels that took part in the attack on Bunker Hill in 1775. He afterward endeavored to take a schooner out of Cape Ann harbor, but was wounded in the attempt. He was on the "Flora" frigate, which captured "La Nymphe" in 1780, was promoted to the rank of commander for his gallantry on the occasion, and became post-captain in the following year. He was wrecked in 1782 in the " Blonde" while bringing a captured vessel into Halifax. He distinguished himself in subsequent campaigns, was thanked by the British parliament, and became admiral of the white.