| Ohlemacher, Irving; 1931 Red Book; 1931 | 1931 Red Book | 1931-00-00 | HYDRO | Captain |
| Ohlemacher, Irving; 1932 Red Book; 1932 | 1932 Red Book | 1932-00-00 | HYDRO | Captain |
| Ohlemacher, Irving; 1933 Red Book; 1933 | 1933 Red Book | 1933-00-00 | HYDRO | Captain |
| Ohlemacher, Irving; 1934 Red Book; 1934 | 1934 Red Book | 1934-00-00 | HYDRO | Captain |
| Ohlemacher, Irving; 1935 Red Book; 1935 | 1935 Red Book | 1935-00-00 | HYDRO | Captain |
| Ohlemacher, Irving; 1936 Red Book; 1936 | 1936 Red Book | 1936-00-00 | HYDRO | Captain |
| Ohlemacher, Irving; 1937 Red Book; 1937 | 1937 Red Book | 1937-00-00 | HYDRO | Captain |
| Ohlemacher, Irving; 1940 Red Book; 1940 | 1940 Red Book | 1940-00-00 | HYDRO | Captain |
| Ohlemacher, Irving; 1941 Red Book; 1941 | 1941 Red Book | 1941-00-00 | HYDRO | Captain |
| Ohlemacher, Irving; 1942 Red Book; 1942 | 1942 Red Book | 1942-00-00 | HYDRO | Captain |
| Ohlemacher, Irving; Great Lakes News 6/43; 1943 | Great Lakes News 6/43 | 1943-00-00 | HYDRO | Captain |