| Name | Hans Wilhelm Hermann Wasserfall Sixma van Heemstra | |
| Title | Baron | |
| Birth | 29 Dec 1903 | |
| Gender | Male | |
| Death | 5 May 1986 | |
| Person ID | I9586 | Evert Louwe Goosen |
| Last Modified | 15 Mar 2021 | |
| Father | Baron Daniël Adrian Hector Willem Sixma van Heemstra, b. 30 Dec 1864 d. 18 Jan 1955 (Age 90 years) | |
| Mother | Martha Margarethe Lehman, b. 8 Feb 1863 d. 16 Oct 1904 (Age 41 years) | |
| Marriage | 20 Oct 1893 | |
| Family ID | F3735 | Group Sheet | Family Chart |