My father, John Penfold, who has died aged 89, spent three decades training teachers in the disciplines of craft, design and technology, having first taught the subject in secondary schools. He was born in Edgware, north London, to Edwin, an accountant, and his wife, Alice (nee Rogers). After Orange Hill grammar school in Burnt Oak, he went straight to Shoreditch teacher training college, in the east of the capital, where he qualified as a design and woodwork teacher. Following two…