Full Details
- Surname
- PLACE
- Forename
- Roger Holden
- Day
- 15
- Month
- 07
- Year
- 1973
- Age
- 33
- Occupation
- Surveyor
- Mine/Quarry Name
- Mertrad Mine (licensed)
- Mineral Worked
- Coal
- Owner
- Location
- County
- Glamorganshire
- Details of Event
- Carrying out a quarterly survey he entrered a 30 yd long unventilated heading on a gradient of 1 in 50 - overcome by natural gas.
