The playwright Shelagh Delaney shot to fame when her debut work, A Taste of Honey, first performed in 1958, turned into a runaway success. She was just 19. The play told the story of a single mother, Helen, and her teenage daughter, Jo, who wanted more from life than marriage and motherhood in the slums. It has rarely been off the stage since and is currently being revived in a National Theatre tour. Fascinated by the work and its Salford-born…