Familie: Gerd Harms Gerdes / Wilhelmine Hilkedine Janßen (F42)
verh. 4 Jun 1904Margaretha Gerdes (1857- ) 
|
Wilhelm Janßen (1838- )
|
| Maisine Johanne Meents (1840- ) |
Ida Maikea Janßen (1874- )  |
| Meikea Margaretha Janßen (1886- ) |
| Bojke Johanne Janßen (1889-1970) |
 | Gerd Harms Gerdes (1880-1952)
|
 | Wilhelmine Hilkedine Janßen (1884-1924)
|
| Wilhelm Johann Gerdes (1904-1945) |
 | Johann Heyo Gerdes (1906-1986) |
 | Heyo Gerdes (1908-1990) |
 | Theodor Heinrich Gerdes (1909-1944) |
 | Georg Theodor Gerdes (1911-1943) |
| Johannes Habbo Gerdes (1913-1989) |