| Folkerts, Anton Johann Bernhard | 1906 | Vegesack | |
| Folkerts, Friedrich Gerhard | Folkerts | 1893 | Bremen |
| Folkerts, Hans Adolf | Folkerts | 1912 | Bremen 1 |
| Folkerts, Hermann Christian | Notzing | 1902 | Bremen 1 |
| Folkerts, Rudolf Friedrich | Notzing | 1912 | Bremen 1 |
| Folkerts, Walter Heinrich | Folkert | 1910 | Bremen 1 |
| Folkerts, Wilhelm Hero Gustav | Rasch | 1898 | Bremen |
| Folkerts, Wilhelm Wiard | Notzing | 1907 | Bremen 1 |