Reel 20 is comprised entirely of material relating to the Ballinger investigation. There is correspondence with Norman Hapgood and Robert J. Collier, editor and publisher respectively of "Collier's Magazine," which was financing the investigation; a resume of Mr. Brandeis's closing argument before the Congressional investigation committee; and general correspondence, memos and reports. Correspondents of note are James R. Garfield and Felix Frankfurter. (Boxes NMF 28-4/5, 29, 30, 31-1)

Box 30, folders 1 & 3 contained maps, charts and newsclippings that were not filmed.