Reproduces record cards and correspondence of MID relating to activities of Blacks in civilian and military life. Records consist of War Department memos, investigative reports and correspondence with the Justice Department and the Bureau of Investigation. Most of the documents cover three subjects: radical organizations and activities in the Black community that had a potential impact on the military; discrimination against Blacks, military and civilian, including incidents leading to race riots; and treatment of and performance by Blacks in the Army. Records on the first subject cover WWI and the entire interwar period; coverage of the 2nd and 3rd topics is limited to the war and immediate post war period. Reel 1 has an introductory essay with background information, an explanation of the record card system, and a list of the Black newspapers included in the files.