My fencing coach Derek Evered, who has died aged 100, began his working life as a lab assistant at 14 and rose to become reader in biochemistry, and deputy to the professor, at Chelsea College of Science and Technology, now part of King’s…

My fencing coach Derek Evered, who has died aged 100, began his working life as a lab assistant at 14 and rose to become reader in biochemistry, and deputy to the professor, at Chelsea College of Science and Technology, now part of King’s…