
| Dorothea Faye Bierma | |
| G: | 15 jul 1922 |
| Walnut Township, Madison, Iowa, Amerika | |
| O: | 18 mei 2014 |
| Ronald Dean Bierma | |
| G: | 19 jan 1928 |
| Madison, Clark, Iowa, Amerika | |
| O: | 6 okt 2014 |
| Denison, Crawford, Iowa, Amerika | |
| Clyde Eugene Bierma | |
| G: | 28 apr 1929 |
| Ohio Township, Madison, Iowa, | |
| O: | 11 feb 2018 |
| Winterset, Madison, Iowa, Amerika | |
| Henry A. Bierma | |
| G: | 19 feb 1899 |
| Prairie City, Jasper, Iowa, Amerika | |
| H: | 15 sep 1920 |
| Madison, Iowa, Amerika | |
| O: | rond 1986 |
| Union, Iowa, Amerika | |