| Cronk, L. B.; 1909 Red Book; 1909 | 1909 Red Book | 1909-00-00 | NORSEMAN | Chief Engineer |
| Cronk, L. B.; 1912 Red Book; 1912 | 1912 Red Book | 1912-00-00 | LEAFIELD | Chief Engineer |
| Cronk, L. B.; 1913 Red Book; 1913 | 1913 Red Book | 1913-00-00 | J. FRATER TAYLOR | Chief Engineer |
| Cronk, L. B.; 1914 Red Book; 1914 | 1914 Red Book | 1914-00-00 | J. FRATER TAYLOR | Chief Engineer |
| Cronk, L. B.; 1915 Red Book; 1915 | 1915 Red Book | 1915-00-00 | J. FRATER TAYLOR | Chief Engineer |
| Cronk, L. B.; 1917 Red Book; 1917 | 1917 Red Book | 1917-00-00 | J. FRATER TAYLOR | Chief Engineer |
| Cronk, L. B.; 1918 Red Book; 1918 | 1918 Red Book | 1918-00-00 | W. C. FRANZ | Chief Engineer |
| Cronk, L. B.; 1922 Red Book; 1922 | 1922 Red Book | 1922-00-00 | BAYTON | Chief Engineer |
| Cronk, L. B.; 1924 Red Book; 1924 | 1924 Red Book | 1924-00-00 | BAYTON | Chief Engineer |
| Cronk, L. B.; 1925 Red Book; 1925 | 1925 Red Book | 1925-00-00 | BAYTON | Chief Engineer |
| Cronk, L. B.; 1926 Red Book | 1926 Red Book | | BAYTON | Chief Engineer |
| Cronk, L. B.; 1927 Red Book; 1927 | 1927 Red Book | 1927-00-00 | BAYTON | Chief Engineer |
| Cronk, L. B.; 1928 Red Book; 1928 | 1928 Red Book | 1928-00-00 | BAYTON | Chief Engineer |
| Cronk, L. B.; 1929 Red Book; 1929 | 1929 Red Book | 1929-00-00 | BAYTON | Chief Engineer |
| Cronk, L. B.; 1930 Red Book; 1930 | 1930 Red Book | 1930-00-00 | BAYTON | Chief Engineer |
| Cronk, L. B.; 1931 Blue Book; 1931 | 1931 Blue Book | 1931-00-00 | RIVERTON | Chief Engineer |
| Cronk, L. B.; 1933 Red Book; 1933 | 1933 Red Book | 1933-00-00 | BAYTON | Chief Engineer |
| Cronk, L. B.; 1935 Red Book; 1935 | 1935 Red Book | 1935-00-00 | RIVERTON | Chief Engineer |
| Cronk, L. B.; 1936 Red Book; 1936 | 1936 Red Book | 1936-00-00 | RIVERTON | Chief Engineer |
| Cronk, L. B.; 1937 Red Book; 1937 | 1937 Red Book | 1937-00-00 | RIVERTON | Chief Engineer |