Writer and political advisor.
Papers (1939-1963) consist of materials related to potential articles on Joseph P. Kennedy Jr. for the Readers Digest and on Robert F. Kennedy for Newsweek. Included in the papers are drafts of articles, correspondence, transcripts of interviews, notes and notebooks, research material and newspaper clippings, with the bulk of the material relating to Cannon’s article, "The Kennedy Who Isn’t There," about the life of Joseph P. Kennedy, Jr. Of note are transcripts of interviews Cannon conducted with John F. Kennedy, Joseph P. Kennedy, and Mrs. Robert F. Kennedy.