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Mr. O'Connor is the author of numerous books, articles, and pamphlets of social and economic interest. He worked in the publishing business from the mid 1920s -1930s and late 1950s, including stints at Federated Press, the Peoples Press, Ken, and the Nation. Active in several civil liberties organizations, Mr. O'Connor became a controversial figure during the McCarthy investigations. His papers contain materials related to his writings; his interest in 1930s Pittsburgh and Chicago labor & politics, the steel, coal, & oil industries; and his involvement in civil liberties activities, including his House Un-American Activities Committee trial.
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