March 1843–1 August 1896) Laetitia Mary Powell, (4 June 1844–2 September 1865) His third marriage on 10 March 1846 (at St Luke's Church, Chelsea) to Henrietta Grace Smyth (3 September 1824–13 October 1914), a daughter of Admiral Smyth, produced seven sons and three daughters: Warington Baden-Powell, (3 February 1847–24 April 1921), a naval officer, a fellow of the Royal Geographical Society and a King's Counsel (K.C.) Sir George Smyth Baden-Powell, (24 December 1847–20 November 1898), a politician and Conservative MP (1885 – 1898) Augustus Smyth Powell (1849–1863) Francis (Frank) Smyth Baden-Powell (29 July 1850– 25 December 1933), an artist who exhibited at the Royal Academy of Arts Henrietta Smyth Powell (28 October 1851–9 March 1854) John Penrose Smyth Powell (21 December 1852–14 December 1855) Jessie Smyth Powell (25 November 1855–24 July 1856) Robert Baden-Powell, 1st Baron Baden-Powell, (22 February 1857–8 January 1941), an army officer, writer and a founder of the Boy Scouts and Girl Guides. Agnes Baden-Powell, (16 December 1858–2 June 1945), founder of the Girl Guides Baden Baden-Powell, (22 May 1860–3 October 1937), an army officer, aviator and president of the Royal Aeronautical Society Shortly after Powell's death in 1860, his wife renamed the remaining children of his third marriage 'Baden-Powell'; the name was eventually legally changed by royal licence on 30 April 1902. Baden Henry Powell is often also referred to as Baden Henry Baden-Powell, and was using this name by the 1891 census. Evolution Powell was an outspoken advocate of the constant uniformity of the laws of the material world. His views were liberal, and he was sympathetic to evolutionary theory long before Charles Darwin had revealed his ideas. He argued that science should not be placed next to scripture or the two approaches would conflict, and in his own version of Francis Bacon's dictum, contended that the book of God's works was separate from the book of God's word, claiming that moral and physical phenomena were completely independent. His faith in the uniformity of nature (except man's mind) was set out in a theological argument; if God is a lawgiver, then a "miracle" would break the lawful edicts that had been issued at Creation. Therefore, a belief in miracles would be entirely atheistic. Powell's most significant works defended, in succession, the uniformitarian geology set out by Charles Lyell and the evolutionary ideas in Vestiges of the Natural History of Creation published anonymously by Robert Chambers