Trusty system (prison)
As of 1973, there were about 1,900 inmates at Parchman.  Two-thirds were black.  Black and white inmates were kept apart.  However, Mississippi law said that the prison could hire 150 staff members at most, so the prison would not cost too much.  This meant there were about 13 inmates for every staff member.  There just were not enough staff members to guard the prisoners, make the prison work every day, take care of the farm, and do everything else they needed to do.