Biography
Douglas MacArthur Cotton was a Mississippi Freedom Rider and SNCC voter-registration organizer. His imprisonment included a Freedom Ride case and a later Greenwood prosecution that sent him to the county farm and Parchman. His sworn account also documents a separate 1964 detention in Natchez.
Charles Payne’s interview-based history describes Douglas MacArthur Cotton and George Greene sharing a cold, unlit punishment cell at Parchman for ten days, with too little space to lie down. This is a description of conditions within the existing imprisonment period, not an additional custody term.
Source: Charles Payne, I’ve Got the Light of Freedom, PDF page 158.