| Dufenhorst, L. J.; 1930 Red Book; 1930 | 1930 Red Book | 1930-00-00 | B. F. JONES | Captain |
| Dufenhorst, L. J.; 1931 Red Book; 1931 | 1931 Red Book | 1931-00-00 | B. F. JONES | Captain |
| Dufenhorst, L. J.; 1932 Red Book; 1932 | 1932 Red Book | 1932-00-00 | B. F. JONES | Captain |
| Dufenhorst, L. J.; 1934 Red Book; 1934 | 1934 Red Book | 1934-00-00 | B. F. JONES | Captain |
| Dufenhorst, L. J.; 1935 Red Book; 1935 | 1935 Red Book | 1935-00-00 | B. F. JONES | Captain |
| Dufenhorst, L. J.; 1936 Red Book; 1936 | 1936 Red Book | 1936-00-00 | B. F. JONES | Captain |
| Dufenhorst, L. J.; 1937 Red Book; 1937 | 1937 Red Book | 1937-00-00 | B. F. JONES | Captain |
| Dufenhorst, L. J.; 1938 Red Book; 1938 | 1938 Red Book | 1938-00-00 | B. F. JONES | Captain |
| Dufenhorst, L. J.; 1941 Red Book; 1941 | 1941 Red Book | 1941-00-00 | B. F. JONES | Captain |
| Dufenhorst, L. J.; LCA Bulletin August, 1939 | LCA Bulletin August, 1939 | 1939-00-00 | B. F. JONES | Captain |
| Dufenhorst, L. J.; LCA Bulletin, August, 1940 | LCA Bulletin, August, 1940 | 1940-00-00 | B. F. JONES | Captain |