[2] He fought at the Battles of Alma, Balaclava and Inkerman as well as the Siege of Sevastopol during the Crimean War.

[2] He was appointed Deputy Director of Works for Barracks in 1872 and a Member of the Ordnance Committee in 1884.

[2] He took part in the Sudan Expedition in 1885 and became Lieutenant Governor of Jersey in 1887 before retiring in 1894.

[2] Ewart was appointed Colonel commandant of the Royal Engineers on 30 March 1902, succeeding General Sir Andrew Clarke.

[3] In 1860 he married his second cousin, Emily Jane Ewart;[2] they had three sons and two daughters.