 While some of the men recruited served in other companies, Walker remained in Omaha.He was involved in the Negro Press Association and when the group met in Omaha during the Trans-Mississippi Exposition in August 1898, he gave a talk about the relationship between press and the law.In November and December 1898, Omaha blacks gathered to call for federal intervention against the lynchings and violence in the south, such as the Wilmington insurrection.