The explosion at Senghenydd in 1913 remains the UK's worst mining disaster Credit: National Library of Wales
Rescue workers returning from the Universal Colliery Credit: National Library of WalesThe explosion ripped through the mine at just after 8am on 14th October 1913 Credit: National Library of WalesFamilies waited for news of their loved ones Credit: National Library of WalesToday a special memorial will be unveiled to mark the centenary of the disaster Credit: National Library of Wales
