Roderick Impey Murchison, 1st baronet (1792–1871)

Geologist and army officer. Served in the British army, 1807–15. Noted for his work on the Silurian system. President of the Geological Society of London, 1831–3 and 1841–3; of the British Association for the Advancement of Science, 1846; of the Royal Geographical Society of London, 1843–4, 1851, 1857–8, 1862–70. Director-general of the Geological Survey of Great Britain, 1855. Knighted, 1863; created baronet, 1866. FRS 1826.