| Hallberg, Karl A.; 1900 Red Book; 1900 | 1900 Red Book | 1900-00-00 | NYACK | Chief Engineer |
| Hallberg, Karl A.; 1904 Red Book; 1904 | 1904 Red Book | 1904-00-00 | NYACK | Chief Engineer |
| Hallberg, Karl A.; 1905 Red Book; 1905 | 1905 Red Book | 1905-00-00 | NYACK | Chief Engineer |
| Hallberg, Karl A.; 1906 Red Book; 1906 | 1906 Red Book | 1906-00-00 | NYACK | Chief Engineer |
| Hallberg, Karl A.; 1907 Red Book; 1907 | 1907 Red Book | 1907-00-00 | NYACK | Chief Engineer |
| Hallberg, Karl A.; 1908 Lynn's; 1908 | 1908 Lynn's | 1908-00-00 | NYACK | Chief Engineer |
| Hallberg, Karl A.; 1909 Red Book; 1909 | 1909 Red Book | 1909-00-00 | NYACK | Chief Engineer |
| Hallberg, Karl A.; 1910 Red Book; 1910 | 1910 Red Book | 1910-00-00 | NYACK | Chief Engineer |
| Hallberg, Karl A.; 1911 Red Book; 1911 | 1911 Red Book | 1911-00-00 | NYACK | Chief Engineer |
| Hallberg, Karl A.; 1913 Red Book; 1913 | 1913 Red Book | 1913-00-00 | NYACK | Chief Engineer |
| Hallberg, Karl A.; 1915 Red Book; 1915 | 1915 Red Book | 1915-00-00 | NYACK | Chief Engineer |
| Hallberg, Karl A.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | THIRD MICHIGAN | fireman |
| Hallberg, Karl A.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | MARK B. COVELL | fireman |
| Hallberg, Karl A.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | WILLIAM L. EWING | fireman |
| Hallberg, Karl A.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | MARK B. COVELL | fireman |
| Hallberg, Karl A.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | SACHEM | First Assistant |
| Hallberg, Karl A.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | PARKS FOSTER | First Assistant |
| Hallberg, Karl A.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | PARKS FOSTER | First Assistant |
| Hallberg, Karl A.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | CADILLAC | First Assistant |
| Hallberg, Karl A.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | NYACK | First Assistant |
| Hallberg, Karl A.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | NYACK | First Assistant |
| Hallberg, Karl A.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | NYACK | First Assistant |
| Hallberg, Karl A.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | NYACK | First Assistant |
| Hallberg, Karl A.; Mansfield, 1899 | Mansfield, 1899 | 1899-00-00 | NYACK | Chief Engineer |