He was the second son of Col.
Samuel Auchmuty and his wife, Elizabeth Domvile Savage, only daughter of Francis Savage. Auchmuty entered the British Army as ensign in 1797 and served first in the
French Revolutionary Wars and subsequently in the
Napoleonic Wars. A year later Auchmuty was transferred to the
70th Regiment of Foot and in 1807 to the
7th Regiment of Foot. He was transferred to the general staff in
India in 1848, became colonel of the
65th Regiment of Foot in February 1851 was promoted to lieutenant-general in November. In 1855, Auchmuty was appointed colonel of his old regiment, the 7th foot, and following the death of
Sir Robert John Harvey was promoted finally to general in 1860. He was awarded a Knight Commander of the
Order of the Bath in 1857 and a Knight Grand Cross in 1861. In 1817, he married Mary Anne Buchanan. ==Arms==