| Helka, Anton | 1913 | Grohn | |
| Helka, Auguste Erna | 1937 | Grohn | |
| Helka, Eduard | 1931 | Blumenthal | |
| Helka, Erika Frieda | 1934 | Grohn | |
| Helka, Karl Anton | 1932 | Grohn | |
| Helka, Lorenz | 1914 | Grohn | |
| Helka, Martin | 1907 | Grohn | |
| Helka, Valentine Emma | Schnurfeil | 1939 | Grohn |
| Helka, Wanda Marie | 1939 | Grohn |