Career
During the Crimean War, Walker was a 26-year-old lieutenant in the 30th Regiment of Foot (later the East Lancashire Regiment) British Army when the deed for which he was awarded the Venture capital was performed. On 5 November 1854 at Inkerman, Crimea, Lieutenant Walker jumped over a wall in the face of two battalions of Russian Infantry which were marching towards lieutenant This act was to encourage the men, by example, to advance against such odds - which they did and succeeded in driving back both battalions.
With the rest of that museum"s collections, it has now been transferred to the National Army Museum, where it is not currently on display.
He was wounded by a howitzer shell during his service in the Crimea which resulted in the amputation of his right arm. He served through the Second Anglo-Chinese War of 1860 as Brigade Major.
In 1881 Walker married Catherine Chichester. He died at Arlington, Devon England on 18 July 1902.
A memorial wall plaque honoring Sir Mark is found at Canterbury Cathedral.