| Liebetreu, George; 1930 Red Book; 1930 | 1930 Red Book | 1930-00-00 | PERE MARQUETTE NO. 17 | Chief Engineer |
| Liebetreu, George; 1931 Red Book; 1931 | 1931 Red Book | 1931-00-00 | PERE MARQUETTE 19 | Chief Engineer |
| Liebetreu, George; 1937 Red Book; 1937 | 1937 Red Book | 1937-00-00 | PERE MARQUETTE NO. 17 | Chief Engineer |
| Liebetreu, George; 1940 Red Book; 1940 | 1940 Red Book | 1940-00-00 | PERE MARQUETTE NO. 17 | Chief Engineer |
| Liebetreu, George; 1941 Red Book; 1941 | 1941 Red Book | 1941-00-00 | PERE MARQUETTE 21 | Chief Engineer |
| Liebetreu, George; 1942 Red Book; 1942 | 1942 Red Book | 1942-00-00 | PERE MARQUETTE 21 | Chief Engineer |
| Liebetreu, George; 1943 Red Book; 1943 | 1943 Red Book | 1943-00-00 | PERE MARQUETTE 21 | Chief Engineer |
| Liebetreu, George; 1944 Red Book; 1944 | 1944 Red Book | 1944-00-00 | PERE MARQUETTE 21 | Chief Engineer |
| Liebetreu, George; 1945 Red Book; 1945 | 1945 Red Book | 1945-00-00 | PERE MARQUETTE 21 | Chief Engineer |
| Liebetreu, George; 1946 Red Book; 1946 | 1946 Red Book | 1946-00-00 | PERE MARQUETTE 21 | Chief Engineer |
| Liebetreu, George; 1947 Red Book; 1947 | 1947 Red Book | 1947-00-00 | PERE MARQUETTE 21 | Chief Engineer |
| Liebetreu, George; 1948 Red Book; 1948 | 1948 Red Book | 1948-00-00 | PERE MARQUETTE 21 | Chief Engineer |