Derwent Colliery explosion, 1947

Fire broke out in the Three Quarter seam at Derwent Colliery, Medomsley, early on 9 February 1947 and an explosion followed; one man ran through the flames to safety, and the three behind him died.

Cause

Fire, thought to have started from an electric cable fault igniting a canvas trapping door, followed by an explosion.

What happened

At about six on the morning of Sunday 9 February 1947, five weeks after nationalisation, fire broke out in the Three Quarter seam at Derwent Colliery. Four men were working on the inbye side of it. William Chaytor smelt fumes, went to look and came back to warn the others, expecting them to follow. Three times the four set off through the smoke on their hands and knees and turned back; on the fourth attempt Chaytor dashed through a curtain of flame and found he was alone. Ronald Heighway, Francis Monaghan and William Watson were killed when an explosion followed.

Rescue brigades from Elswick, Houghton and Crook had to dig their way through snowdrifts on the roads, and worked in relays with breathing apparatus and canaries for six and a half hours before they put out the fire and reached the three, who had been trapped by falls after the explosion. Twelve more men would have been in the district had the snow not stopped their buses. The fire was believed to have started when an electric cable fault set a canvas trapping door alight.

Rescue & recovery

Rescue brigades from Elswick, Houghton and Crook, delayed by snowdrifts, fought the fire for six and a half hours before recovering the three bodies.

What's uncertain

Points where sources disagree or the record could not be settled; both accounts are kept. All open questions in the archive.

• The fire was thought to have been caused by an electric cable fault that set a canvas trapping door alight. (uncertain) ^2,8

Recorded claims

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

• Early on Sunday 9 February 1947 fire broke out in the Three Quarter seam at Derwent Colliery, Medomsley, and an explosion followed; three men working inbye of the fire were killed. ^1,2,3,4,5
• The dead were the timber drawer Ronald Heighway and the stonemen Francis Monaghan and William Watson. ^6,1,3,4
• A fourth man, William Chaytor, smelt fumes, warned the others and escaped by running through the flames; the other three did not follow him. ^2,7
• The fire was thought to have been caused by an electric cable fault that set a canvas trapping door alight. (uncertain) ^2,8
• Rescue brigades from Elswick, Houghton and Crook were held up by snowdrifts and worked for six and a half hours before reaching the bodies. ^2,7
• The colliery had passed to the National Coal Board on 1 January 1947. ^1,3

Related terminology

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

• Breathing Apparatus (contextual relationship)
  Named in this record’s narrative: “…their way through snowdrifts on the roads, and worked in relays with breathing apparatus and canaries for six and a half hours before they put out the fire…”
• Canary (contextual relationship)
  Named in this record’s narrative: “…on the roads, and worked in relays with breathing apparatus and canaries for six and a half hours before they put out the fire and reached…”
• Colliery (contextual relationship)
  Named twice in this record, first in the summary: “Fire broke out in the Three Quarter seam at Derwent Colliery, Medomsley, early on 9 February 1947 and an explosion followed; one…”

Sources

1. (primary) Colliery accident, Derwent, 9 February 1947 — Durham Mining Museum
2. (primary) Three Miners Die In Pit Explosion (The Yorkshire Post, 10 February 1947), transcribed — Durham Mining Museum
3. (secondary) Accident record: W. Watson, Derwent, 1947 — Northern Mine Research Society
4. (secondary) Accident record: F. Monaghan, Derwent, 1947 — Northern Mine Research Society
5. (secondary) Accident record: R. Heighway, Derwent, 1947 — Northern Mine Research Society
6. (primary) Derwent Colliery — Durham Mining Museum
7. (primary) Four crawled for safety: one got there (February 1947), transcribed — Durham Mining Museum
8. (primary) 3 Deaths in Pit Fire (The Times, 10 February 1947), transcribed — Durham Mining Museum

Record created: 6 October 2026 · Last researched: 8 October 2026