| Folkert, H. H.; 1913 Red Book; 1913 | 1913 Red Book | 1913-00-00 | TAURUS | Chief Engineer |
| Folkert, H. H.; 1914 Red Book; 1914 | 1914 Red Book | 1914-00-00 | TAURUS | Chief Engineer |
| Folkert, H. H.; 1915 Red Book; 1915 | 1915 Red Book | 1915-00-00 | ELBA | Chief Engineer |
| Folkert, H. H.; 1917 Red Book; 1917 | 1917 Red Book | 1917-00-00 | ELBA | Chief Engineer |
| Folkert, H. H.; 1918 Red Book; 1918 | 1918 Red Book | 1918-00-00 | ELBA | Chief Engineer |
| Folkert, H. H.; 1919 Red Book; 1919 | 1919 Red Book | 1919-00-00 | ELBA | Chief Engineer |
| Folkert, H. H.; 1920 Red Book; 1920 | 1920 Red Book | 1920-00-00 | ELBA | Chief Engineer |
| Folkert, H. H.; 1921 Red Book; 1921 | 1921 Red Book | 1921-00-00 | ELBA | Chief Engineer |
| Folkert, H. H.; 1922 Red Book; 1922 | 1922 Red Book | 1922-00-00 | ELBA | Chief Engineer |
| Folkert, H. H.; 1923 Red Book; 1923 | 1923 Red Book | 1923-00-00 | ELBA | Chief Engineer |
| Folkert, H. H.; 1924 Red Book; 1924 | 1924 Red Book | 1924-00-00 | ELBA | Chief Engineer |
| Folkert, H. H.; 1925 Red Book; 1925 | 1925 Red Book | 1925-00-00 | ELBA | Chief Engineer |
| Folkert, H. H.; 1926 Red Book | 1926 Red Book | | ELBA | Chief Engineer |