Brooke. Nine months after Brooke perished in the First World War from blood poisoning, Cornford was born, and in tribute to the famous poet, he was christened Rupert John, but always was known by his middle name. This seemed appropriate since he came to have disdain not only for the poetry of Brooke but also for the legend of the dead officer cultivated by, among others, his mother Frances Cornford.
The second of five children John Cornford experienced an ordinary childhood with his two brothers and two sisters, only setting himself apart from them with his tenacious obstinacy. An awkward, solitary youngster, without any hint of the exceptional young man he would become later, he seemed unduly cautious in comparison to his siblings. Not the sort of person to follow a path without knowing where it led, he was reluctant as a boy to take chances. As his father Francis M. Cornford pointed out, "He refused to attempt what he thought he never could do well." And what he did well was think things out, the kind of child, his father observed, who "lived in thought without needing to translate it into action."