National Colliery roof fall, 1913

A timberman and his assistant ripping down the roof of a haulage road at National Colliery, Wattstown, were killed on 18 December 1913 when a large piece fell out.

Date18 December 1913
MineNational Colliery
RegionRhondda Cynon Taf
TypeCollapse / Roof Fall
Fatalities2 (Two killed: the timberman Oliver Davies and his assistant John Harris.)
Context During active mining

Cause

A large portion of roof fell out while the men were ripping it down on a haulage road.

What happened

On 18 December 1913 the timberman Oliver Davies, 29, and his assistant John Harris, 38, were ripping down the roof of a haulage road at National Colliery, Wattstown, when a large portion of it fell out on them and killed them both instantly.

Recorded claims

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

Related terminology

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

Sources

  1. (secondary) Welsh coal mining fatalities, 1913 — Welsh Coal Mines
  2. (secondary) Accident record: Oliver Davies, National, 1913 — Northern Mine Research Society
  3. (secondary) Accident record: John Harris, National, 1913 — Northern Mine Research Society

Record created: 8 October 2026 · Last researched: 8 October 2026

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