In 1949, Dahmer was in the process of making out his new registration card when Luther Cox denied his attempts to re-register. Luther Cox was the authority figure in charge of registered voters in Forrest County and was a white segregationist. Cox would only authorize a registration of a black person if they could answer the question "How many bubbles are in a bar of soap?" In 1950, fifteen leaders of Forrest County's black community, including Dahmer, filed a lawsuit against Cox for his administration of the voting laws; preliminary injunction. Twelve years later, in March 1962, the preliminary injunction was in motion of being viewed by the court of law. Dahmer had testified in court against Luther Cox and his testimony helped demonstrate the pattern of discrimination in the county.