Clay-Kicking or Working the Cross | Nottinghamshire Mining Museum - a history of Nottinghamshire Mining
Sacrifice in the Tunnels – The Secret War of WW1 – Manchester Historian
The War Below review – plucky shot at telling amazing story of wartime tunnellers | Movies | The Guardian
Tunnelling in the deep - Mining Magazine
Arthur Shelby in real life : r/PeakyBlinders
Tunnelling companies of the Royal Engineers - Wikipedia
Tunnelling in WWI
Meet The Tunnelers That Won WW1 | Be Amazed
Beneath Their Very Feet
Deadliest explosion killed 10,000 Germans and was heard 140 miles away in London - Mirror Online
Tunnelling companies of the Royal Engineers - Wikipedia
The 18 sewer men who changed the war - BBC News
Never-before-seen images of 'Birdsong' tunnels dug by British pit workers to undermine the German lines in First World War | Daily Mail Online
Never-before-seen images of 'Birdsong' tunnels dug by British pit workers to undermine the German lines in First World War | Daily Mail Online
Tunnelling Companies in the Great War | Tunnellers Memorial
TIL that during WW1, explosions in France were heard in London. A team of miners worked in secret to dig tunnels under the German trenches during the war in order to plant
British Modern Military History Society - Meeting: December 2020 - Underground Warfare