Sir Richard John Griffith Bt. FRS FRSE FGS LLD (20 September 1784 – 22 September 1878), was an Irish geologist, mining engineer and chairman of the Board of Works of Ireland, who completed the first complete geological map of Ireland and was the author of the valuation of Ireland; subsequently known as Griffith's Valuation. Biography Griffith was born in Hume Street, Dublin, Ireland on 20 September 1784, the son of Richard Griffith, MP of Millicent House, and Charity Yorke Bramston, daughter of John Bramston of Oundle. His paternal grandmother was the acclaimed actress, essayist and novelist, Elizabeth Griffith. He went to school in Portarlington and later, while attending school in Rathangan, his school was attacked by the rebels during the rebellion of 1798. He also studied in Edinburgh. In 1799 he obtained a commission in the Royal Irish Artillery, but a year later, when the corps was incorporated with that of Great Britain, he retired, and devoted his attention to civil engineering and mining. He studied chemistry, mineralogy and mining for two years in London under William Nicholson, and afterwards examined the mining districts in various parts of England, Wales and Scotland. While in Cornwall he discovered ores of nickel and cobalt in material that had been rejected as worthless. He completed his studies under Robert Jameson and others at Edinburgh, was elected a Fellow of the Royal Society of Edinburgh in 1807, a member of the newly established Geological Society of London in 1808, and in the same year, he returned to Ireland. In 1809, he was appointed by the commissioners to inquire into the nature and extent of the bogs in Ireland, and the means of improving them. In 1812 he was elected Professor of Geology and Mining Engineer to the Royal Dublin Society. Shortly afterwards he expressed his intention of preparing a geological map of Ireland. During subsequent years he made many surveys and issued many reports on mineral districts in Ireland, and these formed the foundation of his first geological map of the country (1815). He also succeeded Dr. Richard Kirwan as government inspector of mines in Ireland. In 1822 Griffith became engineer of public works in Cork, Kerry and Limerick, and was occupied until 1830 in repairing old roads and in laying out many miles of new roads in some of the most inaccessible parts of the country. Meanwhile, in 1825, he was appointed by