Full Details
- Surname
- WILLIAMS
- Forename
- John
- Day
- 19
- Month
- 08
- Year
- 1903
- Age
- 19
- Occupation
- Collier
- Mine/Quarry Name
- Onllwyn
- Mineral Worked
- Coal
- Owner
- Sir Griffith Thomas
- Location
- Onllwyn
- County
- Glamorganshire
- Details of Event
- A charge of compressed powder ignited by means of a patent squib exploded prematurely and deceased was struck by some of the debris.
