| Birth | 8 Aug 1881 | Hanson, Dakota Territory, USA | | | |
| Homestead Patent | | by the United States government to 160 acres of land in section 33, township 102 north, range 57 west (Pleasant township), Hanson County, South Dakota on January 23, 1890. This Johann Lehmann would have only been 9 years old. Another Johann Lehman?, | | | |
| Marriage | 10 Jun 1904 | Alexandria, Hanson, South Dakota, USA - Phillipina Loeffler | | | |
| Death | Feb 1953 | Waterloo, Allamakee, Iowa, USA | | | |
| Burial | Feb 1953 | National Peace Gardens Cemetery, Waterlooo, Allamakee, Iowa, USA | | | |
| Alt name | | John Carl Lehmann | | | |
