This collection included surveillance and case documentation from the FBI investigations conducted on the National Negro Congress and its successor organizations from 1936 to 1962. This collection includes promotional literature distributed by the Congress and official organizational documentation gathered by the Bureau from the national office of the NNC in Washington, D.C. and from field offices in such cities as New York, Chicago, and Los Angeles. Notables figures of the time included in the FBI investigations include John P. Davis and A. Philip Randolph.