| Buttler, L.; 1923 Red Book; 1923 | 1923 Red Book | 1923-00-00 | GLENDOCHART | Chief Engineer |
| Buttler, L.; 1933 Red Book; 1933 | 1933 Red Book | 1933-00-00 | | Port Captain |
| Buttler, L.; 1934 Red Book; 1934 | 1934 Red Book | 1934-00-00 | | Port Captain |
| Buttler, L.; 1935 Red Book; 1935 | 1935 Red Book | 1935-00-00 | | Port Captain |
| Buttler, L.; 1937 Red Book; 1937 | 1937 Red Book | 1937-00-00 | | Port Captain |
| Buttler, L.; 1938 Red Book; 1938 | 1938 Red Book | 1938-00-00 | | Port Captain |
| Buttler, L.; 1939 Red Book; 1939 | 1939 Red Book | 1939-00-00 | SOODOC | Chief Engineer |
| Buttler, L.; 1940 Red Book; 1940 | 1940 Red Book | 1940-00-00 | ONTADOC | Chief Engineer |
| Buttler, L.; 1941 Red Book; 1941 | 1941 Red Book | 1941-00-00 | ONTADOC | Chief Engineer |
| Buttler, L.; 1942 Red Book; 1942 | 1942 Red Book | 1942-00-00 | ONTADOC | Chief Engineer |
| Buttler, L.; 1943 Red Book; 1943 | 1943 Red Book | 1943-00-00 | ONTADOC | Chief Engineer |
| Buttler, L.; 1944 Red Book; 1944 | 1944 Red Book | 1944-00-00 | ONTADOC | Chief Engineer |
| Buttler, L.; 1945 Red Book; 1945 | 1945 Red Book | 1945-00-00 | ONTADOC | Chief Engineer |
| Buttler, L.; 1946 Red Book; 1946 | 1946 Red Book | 1946-00-00 | ONTADOC | Chief Engineer |
| Buttler, L.; 1947 Red Book; 1947 | 1947 Red Book | 1947-00-00 | ONTADOC | Chief Engineer |
| Buttler, L.; 1949 Red Book; 1949 | 1949 Red Book | 1949-00-00 | ONTADOC | Chief Engineer |
| Buttler, L.; 1950 Red Book; 1950 | 1950 Red Book | 1950-00-00 | ONTADOC | Chief Engineer |
| Buttler, L.; 1951 Red Book; 1951 | 1951 Red Book | 1951-00-00 | ONTADOC | Chief Engineer |
| Buttler, L.; 5/48 Great Lakes Review; 1948 | 5/48 Great Lakes Review | 1948-00-00 | ONTADOC | Chief Engineer |