| Father | Male August Wilhelm Ferdinand Jahnke |
| Born | Abt 1830 | Groß Rambin, Belgard, Pommern  |
| Died | 24 Aug 1909 | Bärwalde, Neustettin, Pommern |
| Buried | ||
| Married | ||
| Father | ||
| Mother | ||
| Mother | Female Henriette Pollnow |
| Born | Abt 1836 | Klein Rambin, Belgard, Pommern |
| Died | 5 Apr 1912 | Bärwalde, Neustettin, Pommern |
| Buried | ||
| Father | Georg Friedrich Pollnow | F253 Group Sheet | |
| Mother | Anna Christine Louise Gehrke | F253 Group Sheet | |
| Child 1 | Male Johannes Otto Erdmann Jahnke |
| Born | Abt. 1870 | Bärwalde, Neustettin, Pommern |
| Died | 30 Apr 1893 | Bärwalde, Neustettin, Pommern |
| Buried |
| Child 2 | Female Maria Martha Jahnke |
| Born | 1 Dec 1874 | Bärwalde, Neustettin, Pommern |
| Died | 4 Dec 1874 | Bärwalde, Neustettin, Pommern |
| Buried |
| Child 3 | Female Ida Anna Louise Jahnke |
| Born | 13 Nov 1875 | Bärwalde, Neustettin, Pommern |
| Died | 14 Jan 1919 | Bärwalde, Neustettin, Pommern |
| Buried | ||
| Spouse | Alfred Adalbert Albert Piske | F432 | |
| Married | 27 Dec 1910 | Bärwalde, Neustettin, Pommern |
| Child 4 | Female Anna Marie Louise Jahnke |
| Born | 23 Apr 1877 | Bärwalde, Neustettin, Pommern |
| Died | 14 Sep 1878 | Bärwalde, Neustettin, Pommern |
| Buried |
| Child 5 | Male - Jahnke |
| Born | 10 Apr 1878 | Bärwalde, Neustettin, Pommern |
| Died | 10 Apr 1878 | Bärwalde, Neustettin, Pommern |
| Buried |
| Child 6 | Male Paul Friedrich August Jahnke |
| Born | 6 Sep 1879 | Bärwalde, Neustettin, Pommern |
| Died | 21 Sep 1879 | Bärwalde, Neustettin, Pommern |
| Buried |
| Child 7 | Male Ernst Friedrich Wilhelm Jahnke |
| Born | 18 Aug 1881 | Bärwalde, Neustettin, Pommern |
| Died | 5 Jul 1882 | Bärwalde, Neustettin, Pommern |
| Buried |
