| Name | Age | Sex | Injuries | Injured areas |
|---|---|---|---|---|
| Thornton, Dave | Not recorded | Not recorded | Not recorded | Not recorded |
Ten cavers using flashlights for illumination were leaving John Brown's Cave when Dave Thornton, whose flashlight had gone out, fell trying to cross a pit near the entrance. He was wearing a helmet fastened with a string, and he struck his head several times during the fall. Thornton suffered a fractured lateral projection of the spine. Other members of his group were able to get him out, but he was expected to be off work for 6 to 8 weeks.
Analysis: It is hard to see hazards in poor (or no) light.