Abt 1870 - 1948 (~ 78 years)(Notes: You may have to scroll down or right to see chart.)
| Frederick A Klass Abt 1870-1948 |
| Frederick A Klass | |
| B: | Abt 1870 |
| Oconto, Oconto County, Wisconsin, United States of America | |
| D: | 3 Mar 1948 |
| Hibbing, St. Louis County, Minnesota, United States of America | |
