| Markendorf, Albert | 1899 | Aumund | |
| Markendorf, Albert Hermann | 1934 | Bremen 3 / 2 (Gröpelingen) | |
| Markendorf, Anna Marie | 1925 | Grohn | |
| Markendorf, Clara Louise | 1927 | Grohn | |
| Markendorf, Frieda Albertine | 1925 | Grohn | |
| Markendorf, Margarethe Auguste | 1926 | Grohn | |
| Markendorf, Martha Emilie | 1924 | Aumund | |
| Markendorf, Robert Ludwig | 1923 | Lesum |