Herbert Sneyd-Kynnersley (like Harry Potter’s Severus Snape, the Dickensian name makes you wince) was the infamous headmaster of St. George’s School, Ascot, who regularly beat his small charges with birch rods, and according to some, with sadistic sexual pleasure. Like Dinsdale Piranha in a famous Monty Python skit, “he was a cruel man—but fair.” Edward Dutton sets out to vindicate him. Indeed, one might say he comes to praise Sneyd-Kynnersley and to bury Churchill. The post Churchi...