| Heckel, George W.; 1930 Blue Book; 1930 | 1930 Blue Book | 1930-00-00 | MAUNALOA | First Assistant |
| Heckel, George W.; 1931 Blue Book; 1931 | 1931 Blue Book | 1931-00-00 | EUGENE J. BUFFINGTON | Second Asistant |
| Heckel, George W.; 1937 Blue Book; 1937 | 1937 Blue Book | 1937-00-00 | RICHARD TRIMBLE | First Assistant |
| Heckel, George W.; 1943 Red Book; 1943 | 1943 Red Book | 1943-00-00 | MACGILVRAY SHIRAS | Chief Engineer |
| Heckel, George W.; 1944 Red Book; 1944 | 1944 Red Book | 1944-00-00 | RENSSELAER | Chief Engineer |
| Heckel, George W.; 1945 Red Book; 1945 | 1945 Red Book | 1945-00-00 | CORNELL | Chief Engineer |
| Heckel, George W.; Great Lakes News 3/47; 1947 | Great Lakes News 3/47 | 1947-00-00 | | Oiler |
| Heckel, George W.; Great Lakes News 3/47; 1947 | Great Lakes News 3/47 | 1947-00-00 | | Shore Engineer |
| Heckel, George W.; Great Lakes News 3/47; 1947 | Great Lakes News 3/47 | 1947-00-00 | MACGILVRAY SHIRAS | Chief Engineer |
| Heckel, George W.; Great Lakes News 3/47; 1947 | Great Lakes News 3/47 | 1947-00-00 | NORMAN B. REAM | Chief Engineer |
| Heckel, George W.; LCA Annual Report 1928 | LCA Annual Report 1928 | 1928-00-00 | PENTECOST MITCHELL | First Assistant |
| Heckel, George W.; LCA Bulletin 6/23; 1923 | LCA Bulletin 6/23 | 1923-00-00 | JAMES A. FARRELL | Oiler |
| Heckel, George W.; LCA Bulletin 6/23; 1923 | LCA Bulletin 6/23 | 1923-00-00 | CORALIA | Second Assistant |
| Heckel, George W.; LCA Bulletin 6/23; 1923 | LCA Bulletin 6/23 | 1923-00-00 | JAMES A. FARRELL | Third Assistant |