Mining was to remain the principal industry of Brownhills until the last pit closed in the 1950s. During the 18th and 19th centuries the area known as Coppice Side was the hub of the mining industry, and the census of 1841 showed that over 80% of the population of the area which makes up modern Brownhills lived and worked there, with up to ten pits active in the area at any one time. As in other mining areas, several men lost their lives in the Brownhills pits. Seven miners, including a boy aged 11, died in an accident in 1861, and in October 1930 an explosion at the Grove Colliery killed fourteen miners, ten of them from Brownhills.