Google's approximation of the locationDescription of institution:Sir William Blackett's ODNB: Newcastle was prospering from its position in the centre of the largest coal-producing district in the world, employing 10,000 workmen in the mines and exporting over 450,000 tons of coal to London in 1633–4. The coal trade on the Tyne was controlled by a small company called the Hostmen.URL:https://www-oxforddnb-com.cyber.usask.ca/view/10.1093/ref:odnb/9780198614128.001.0001/odnb-9780198614128-e-61542