Letter from Horner to 'Gladys,' 1939 September 12 Letter from Charles A. Lindbergh, 1939 May 27 [photocopy, 2 copies] Letter from American Ambassador to Mexico, Josephus Daniels, 1939 July 21, with clipping post-1941 2 letters from Franklin Roosevelt, 1939 August 30; 1939 October 5 Letter from Harlee Branch, 1939 October 21 Photocopy of interview with Horner from February 1930 in The Platform World Unidentified memo letter to Horner with envelope, 1939 July 24 Photograph of Horner in Lexington, Nebsraka, undated [heavily faded]