Familie: Eduard Bahlo / Bertha Elfriede Hakelberg (F35510)
 | Otto Hakelberg (1863- ) |
 | Auguste Thran (1866- ) |
| Emma Johanna Hakelberg (1892- ) |
| Emma Bertha Hakelberg (1893- ) |
| Heinrich Otto Hakelberg (1894- ) |
| Otto Walter Hakelberg (1896- ) |
| Else Bertha Hakelberg (1899- ) |
| Otto Bruno Hakelberg (1900- ) |
| Ella Hertha Hakelberg (1901-1985) |
| Ida Bertha Hakelberg (1903-1987) |
| Hermann Otto Hugo Hakelberg (1905- ) |
| Curt Erich Hakelberg (1906- ) |
| Eduard Bahlo (1887-1960) |
| Bertha Elfriede Hakelberg (1891-1969) 
|
| Margarete Bahlo (1920-1974) |
| Christel Bahlo (1925-2005) |