| Source: Coal Men of America: A Biographical and Historical Review of the World's Greatest Industry (Chicago: The Retail Coalman, 1918) Location: MO /338.2 / H877c | |
 | |
| Last Name: | Niggeman |
| First Name: | Robert |
| Middle Name: | A. |
| Birth Date: | 1874 |
| Page: | 191 |
| Remarks: | resident of St. Louis, Missouri |
