Wheal Owles flooding disaster

Miners broke through into the flooded, long-abandoned workings of Wheal Drea, trapping and drowning twenty men and boys underground.

Cause

A surveying error meant the miners working the Cargodna section did not realise how close they had come to the old, flooded workings of the neighbouring Wheal Drea, and blasted straight through into them.

What happened

On the morning of 10 January 1893, miners working the Cargodna section broke through into the adjoining, long-flooded workings of Old Wheal Drea. The inrush of water pushed a powerful blast of air ahead of it that blew out every light underground. Nineteen men and a boy died in the resulting darkness and were never recovered.

Rescue & recovery

A miner working nearby, James Hall, recognised the danger when he felt the ground shaking and saw gravel falling, and led five other men to safety along a tram-wagon route, guiding them through the darkness to the ladders. Of the 41 men underground that day, twenty were killed; the other twenty-one, including those Hall led out, survived. None of the twenty victims' bodies were ever recovered — they remain in the flooded workings. Hall himself died in July 1895 from lung disease attributed to his mining work.

Memorials & commemoration

A memorial to the men was erected at surface near the mine, and a plaque listing their names was placed on the wall of the engine house.

Recorded claims

Individual factual claims, each attached to the source(s) that support it below. Where sources disagree, both are kept.

• The twenty victims were, by working level: Level 65 — William Davey, William Eddy, James Rowe, William Roberts, John Taylor, Mark Taylor, James Edwards Trembath, Edward White; Level 75 — Thomas Ellis, Peter Dale, James Thomas, James Williams; Level 85 — Thomas Allen, John Grose, Thomas Grose, John Olds, William Stevens Thomas, Charles Hichens Thomas, Lewis Blewett Wilkins, Edward Williams. ¹
• James Hall recognised the ground shaking and gravel falling as signs of the impending breach and led five other miners to safety by tram-wagon before the flood struck; he died in 1895 of lung disease attributed to his mining work. ¹

Related terminology

Mining terms this disaster is structurally linked to, with the nature of the relationship.

• Engine House (contextual relationship)
  The engine house is where the men are remembered: a plaque listing the names of the twenty who drowned was placed on its wall, beside the surface memorial.
• Inrush (contextual relationship)
  The inrush from Old Wheal Drea pushed a blast of air ahead of it strong enough to blow out every light underground before the water itself arrived.
• Ladders (contextual relationship)
  Named in this record’s rescue and recovery: “…along a tram-wagon route, guiding them through the darkness to the ladders. Of the 41 men underground that day, twenty were killed; the other…”
• Submarine Mining (contextual relationship)
  The disaster happened in a mine working seaward ground, where survey error and water were the standing hazards.
• Wheal (contextual relationship)
  Two Cornish 'Wheal' mines in one disaster: miners in Wheal Owles broke through into the long-abandoned flooded workings of Wheal Drea next door.

Sources

1. (secondary) Wheal Owles Mine Disaster, 1893 — West Penwith Resources
2. (secondary) Wheal Owles Flooding - St Just - 1893 — Northern Mine Research Society

Record created: 20 August 2026 · Last researched: 20 August 2026