| Nationality: | GB |
| Height: | 180 cm |
| Weight: | 63 kg |
| Date of birth: | 26th October 1956 |
| Date of death: | 28th May 1993 |
Derek grew up in the UK and started climbing in the Peak DIstrict. In 1983 he moved to the US where he spent the rest of his life.
Derek was a prolific solo climber. He was particularly well known for soloing routes close to his lead grade.
[1] Obituary: Derek Hersey from The Independent newspaper https://www.independent.co.uk/news/people/obituary-derek-hersey-1494003.html