Charles Alexander Sim (c.1840-30 July 1897) was an officer in the Royal Engineers and a local politician in the Westminster area. He joined the army in December 1858 when he received a commission as a lieutenant in the Queen's Own Madras Sappers and Miners. He took part in the Kohat Expedition of 1869, was mentioned in despatches and was promoted to second captain in 1870, captain in 1872 and major in 1877. He fought in the Second Anglo-Afghan War of 1879-80 and was again mentioned in despatches and given the brevet rank of lieutenant-colonel in November 1879. An image of his grave here [1].