Seaham Colliery boiler accident, 1901

A new Lancashire boiler slipped off its chocks while being set at Seaham Colliery on 18 March 1901, crushing a fitter and a driller to death.

Date18 March 1901
MineSeaham Colliery
RegionCounty Durham
TypeMachinery
Fatalities2 (Two killed: the fitter Mark Forster and the driller John William Milbourne Nixon.)
Context During active mining
A colliery winding wheel mounted as a memorial at Seaham, County Durham.
Preserved Seaham Colliery pit wheel Mat Fascione / Seaham Colliery pit wheel / CC BY-SA 2.0

Cause

The chocks under a new Lancashire boiler gave way while it was being set.

What happened

On 18 March 1901 men at Londonderry Collieries' Seaham Colliery were setting a new Lancashire boiler. The chocks on which it rested gave way, and the boiler fell, catching and crushing two of them: the fitter Mark Forster, 24, and the driller John William Milbourne Nixon, 21.

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. (primary) Durham Mining Museum: Seaham Colliery — Durham Mining Museum
  2. (secondary) 1900s F2: Ian Winstanley's alphabetical list of mining victims — Healey Hero

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

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