| Gangwish, Hugh; 1917 Red Book; 1917 | 1917 Red Book | 1917-00-00 | BELGIUM | Chief Engineer |
| Gangwish, Hugh; 1918 Red Book; 1918 | 1918 Red Book | 1918-00-00 | BELGIUM | Chief Engineer |
| Gangwish, Hugh; 1919 Red Book; 1919 | 1919 Red Book | 1919-00-00 | BELGIUM | Chief Engineer |
| Gangwish, Hugh; 1920 Red Book; 1920 | 1920 Red Book | 1920-00-00 | MONROE C. SMITH | Chief Engineer |
| Gangwish, Hugh; 1921 Red Book; 1921 | 1921 Red Book | 1921-00-00 | MONROE C. SMITH | Chief Engineer |
| Gangwish, Hugh; 1922 Red Book; 1922 | 1922 Red Book | 1922-00-00 | MONROE C. SMITH | Chief Engineer |
| Gangwish, Hugh; 1923 Red Book; 1923 | 1923 Red Book | 1923-00-00 | CHARLES HUBBARD | Chief Engineer |
| Gangwish, Hugh; 1924 Red Book; 1924 | 1924 Red Book | 1924-00-00 | CHARLES HUBBARD | Chief Engineer |
| Gangwish, Hugh; 1925 Red Book; 1925 | 1925 Red Book | 1925-00-00 | CHARLES HUBBARD | Chief Engineer |
| Gangwish, Hugh; 1927 Red Book; 1927 | 1927 Red Book | 1927-00-00 | JOHN B. COWLE | Chief Engineer |
| Gangwish, Hugh; 1928 Red Book; 1928 | 1928 Red Book | 1928-00-00 | JOHN B. COWLE | Chief Engineer |
| Gangwish, Hugh; 1929 Red Book; 1929 | 1929 Red Book | 1929-00-00 | JOHN B. COWLE | Chief Engineer |
| Gangwish, Hugh; 1930 Red Book; 1930 | 1930 Red Book | 1930-00-00 | JOHN B. COWLE | Chief Engineer |
| Gangwish, Hugh; 1931 Red Book; 1931 | 1931 Red Book | 1931-00-00 | JOHN B. COWLE | Chief Engineer |
| Gangwish, Hugh; 1936 Red Book; 1936 | 1936 Red Book | 1936-00-00 | JOHN B. COWLE | Chief Engineer |
| Gangwish, Hugh; 1937 Red Book; 1937 | 1937 Red Book | 1937-00-00 | JOHN B. COWLE | Chief Engineer |
| Gangwish, Hugh; 1940 Red Book; 1940 | 1940 Red Book | 1940-00-00 | JOHN B. COWLE | Chief Engineer |
| Gangwish, Hugh; 1941 Red Book; 1941 | 1941 Red Book | 1941-00-00 | JOHN B. COWLE | Chief Engineer |
| Gangwish, Hugh; 1942 Red Book; 1942 | 1942 Red Book | 1942-00-00 | JOHN B. COWLE | Chief Engineer |
| Gangwish, Hugh; 1943 Red Book; 1943 | 1943 Red Book | 1943-00-00 | JOHN B. COWLE | Chief Engineer |
| Gangwish, Hugh; 1944 Red Book; 1944 | 1944 Red Book | 1944-00-00 | J. H. HILLMAN JR. | Chief Engineer |
| Gangwish, Hugh; 1946 Red Book; 1946 | 1946 Red Book | 1946-00-00 | J. H. HILLMAN JR. | Chief Engineer |
| Gangwish, Hugh; Great Lakes News 6/39; 1939 | Great Lakes News 6/39 | 1939-00-00 | JOHN B. COWLE | Chief Engineer |
| Gangwish, Hugh; LCA Bulletin 37(1) | LCA Bulletin 37(1) | | HOWARD M. HANNA JR. | Chief Engineer |
| Gangwish, Hugh; LCA Bulletin May, 1945 | LCA Bulletin May, 1945 | 1945-00-00 | J. H. HILLMAN JR. | Chief Engineer |
| Gangwish, Hugh; LCA/GLPA Bulletin, 10/43; 1943 | LCA/GLPA Bulletin, 10/43 | 1943-00-00 | J. H. HILLMAN JR. | Chief Engineer |