1967; "New york-to-Paris... How Lindbergh Did It," J.S. Butz, Jr., Aerospace International, 1967

1967; "New york-to-Paris... How Lindbergh Did It," J.S. Butz, Jr., Aerospace International, 1967, Box: 4, Folder: 1d. 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/94362 Accessed December 20, 2024.