Waterhouse was commissioned as a lieutenant in the 81st Foot in June 1799. Shortly after this, the regiment was posted to
Cape Colony in South Africa, captured from the
Dutch in 1795 and remained there until the colony was returned under the 1802
Treaty of Amiens. During the
War of the Third Coalition, the first battalion of the 81st joined the British expeditionary force in
Southern Italy; by now a captain, Waterhouse was wounded at the
Battle of Maida in 1806. He was promoted major in November 1811, and after six years in Sicily, the 81st was assigned to the
Catalonia expedition, a feint to help with the main Allied thrust in 1812. The battalion landed in
Alicante in August 1812 and was involved in the failed seaborne attack on
Dénia in October 1812. He was
mentioned in dispatches by Major General
Rufane Shaw Donkin, who wrote: "I am much indebted to Major Waterhouse of the 81st Regiment for his assistance during the whole day but particularly at the moment of embarkation, which he covered in a manner that did him the highest credit. Waterhouse and the 81st remained on the east coast of Spain, taking part in the battles of
Castalla Ordal, until the war ended in April 1814. He was with the second battalion during the 1815
Waterloo Campaign, which was assigned to guard duties in
Brussels and missed the
Battle of Waterloo. After Waterloo, the second battalion was disbanded and Waterhouse returned to the first battalion, which was based in Ireland; he was promoted Lieutenant Colonel on 12 August, 1819. In 1822, the battalion was posted to
Halifax, Nova Scotia, where Waterhouse died on 19 May 1823 and buried in the
Old Burying Ground. ==References==