Francis Barber, “given” to the great eighteenth-century writer Samuel Johnson, more companion than servant, afforded an unusual depth of freedom that, after Johnson’s death, hastened his wretched demise . . . Randolph Turpin, who made history in 1951 by defeating Sugar Ray Robinson, becoming Britain’s first black world-champion boxer, a top-class fighter for twelve years whose life ended in debt and despair . . . David Oluwale, a Nigerian stowaway who arrived in Leeds in 1949, the events of whose life called into question the reality of English justice, and whose death at the hands of police in 1969 served as a wake-up call for the entire nation.