I couldn’t help thinking, as I read this book, of an old story, vaguely recalled from English A-level classes, about the poet and verse dramatist Gordon Bottomley. I can’t remember now which of his plays it concerns, but it must have been just after the notorious MP and swindler Horatio Bottomley had been imprisoned for fraud in 1922, because as the curtain fell on the final excruciating scene there was a shout from the audience: ‘My God, they’ve gaoled the wrong Bottomley!’

A reader is not going to get very far with Daisy Dunn’s new biography — the opening four lines,...