In 1917, 90% of Parchman's prisoners were black. Most of the black prisoners were serving long sentences for violent crimes against other blacks and were illiterate laborers and farm workers. Of the black prisoners who committed crimes against other blacks, 58% had sentences of ten years or more and 38% had life sentences. Of the black prisoners who committed crimes against other blacks, 35% had committed murder, 17% had committed manslaughter, 8% had committed assault and battery, and 5% had committed rape or attempted rape.