"Tons Aloft: Test Piloting the Transatlantic Clipper," by Edumnd T. Allen with CBA, Sep 17, 1938

"Tons Aloft: Test Piloting the Transatlantic Clipper," by Edumnd T. Allen with CBA, Sep 17, 1938, Box: 13, Folder: 2. Carl B. Allen Papers Regarding Early Aviation, A&M 2252. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/95152 Accessed November 03, 2024.