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 . Millard F. Singleton , John Albert Williams , E. H. Hall , Walker and others were important leaders in those efforts
Wilmington insurrection
Wilmington insurrection of 1898
Victor B. Walker