http://www.priaulxlibrary.co.uk/articles/article/family-major-general-john-gaspard-le-marchant
http://boards.ancestry.co.uk/search...&_88000003=Le Marchant&gskw=Le Marchant&hc=50
http://www.theislandwiki.org/index.php/Le_Marchant
http://forebears.io/channel-islands/guernsey
LE MARCHANT, LOUIS ST GRATIEN, Captain, was born at Little Rissington, Bourton, Gloucestershire, 2 December 1866, son of the Reverend Robert Le Marchant, Rector of Little Rissington. He joined the East Lancashire Regiment 10 November 1886, from the Gloucester Militia; was promoted Captain 11 December 1895; served in the Chitral Expedition in 1895 (Medal and clasp). He was Adjutant, 1st Battalion, from 29 October 1898 to 28 October 1902. Captain Le Marchant served in the South African War, 1900-2, as Adjutant, 1st, Battalion East Lancashire Regiment, taking part in operations in the Orange Free State, February to May 1900, including actions at Karee Siding, Vet River (5 and 6 May) and Zand River; operations in the Transvaal in May 1900 including action near Johannesburg; operations in the Transvaal 30 November 1900 to October 1901; operations in Orange River Colony, October 1901 to 31 May 1902. He was mentioned in Despatches [London Gazette, 10 September 1901 and 29 July 1902]; received the Queen's Medal with three clasps, King's Medal with two clasps, and was created a Companion of the Distinguished Service Order [London Gazette, 27 September 1901]: "Louis St Gratien Le Marchant, Captain, East Lancashire Regiment. In recognition of services during the operations in South Africa". The Insignia were presented by the King 24 October 1901: the Warrant, sent, 4 November 1902. He was promoted Major 11 April 1906; became Brigade Major, 1906; DAAG, 2 March 1908, and Lieutenant Colonel 1913. When the European War commenced, Lieutenant Colonel Le Marchant accompanied the Expeditionary Force to France and Flanders. He was mentioned in Despatches 19 October 1914, and 10 December 1914, and fell at La Ferte-sous-Jouarre, at the Battle of the Marne, 9 September 1914. He was unmarried. One of the Senior Officers of the regiment, in writing to the family, says: "It is with the deepest regret that I have to inform you of the death of our Commanding Officer, Lieutenant Colonel Le Marchant, on Wednesday, 9 September, about 10.30 am The battalion was at that time in action in a town, and he went forward to visit and encourage a party of men who were in a loft of one of the houses. As he reached the loft and passed a small window he was struck by a bullet in the neck and expired immediately. He was, as you know, absolutely without personal fear, constantly exposing himself to danger in encouraging others, and cool and collected in action. To us, as you know, his loss is irreparable, and we can only ask you to accept our deepest sympathy in the grief you must feel. He was loved and honoured by all ranks, but by none more than by those who knew him best".
Source: DSO recipients (VC and DSO Book)