Earnest Sevier Cox was a committed white supremacist who advocated on behalf of anti-miscegenation laws and in 1922 cofounded with the composer John Powell the Anglo-Saxon Clubs of America, a Richmond-based, nationwide organization devoted to maintaining a strict separation of the races. In 1923, Cox published White America, a book that described his travels in Africa and argues that race-mixing would result in the collapse of “white civilization.” He also wrote extensively on eugenics, a now discredited scientific movement aimed at proving the superiority of the white race. Together with composer Powell and Virginia state registrar, Cox played an influential role in lobbying the Virginia General Assembly to pass the , a strict anti-miscegenation law, and later the Massenburg Bill, which banned racial mixing in all public places. In 1924, Cox formed an unlikely alliance with the black nationalist Marcus Garvey based on their shared belief that the only way to save the races was for African Americans to relocate to Africa. Cox retired from the real estate business in 1958 and died in Richmond in 1966.