
 1899 - 1986  (86 jaar)
 1899 - 1986  (86 jaar)
| 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 | |
| O: | rond 1986 | 
| Union, Iowa, Amerika | |
| Gladys Verdi Youmans | |
| H: | 15 sep 1920 | 
| Madison, Iowa, Amerika | |