| Father | Date of Birth | Mother | Date of Birth | 
|---|---|---|---|
|  Karl Sommerfeld |  Wilhelmine Golze | 
| Partner | Date of Birth | Children | 
|---|---|---|
|  Minna Martha Marie Keil | 25.09.1871 | 
| Event Type | Date | Place | Description | 
|---|---|---|---|
|  Birth | 16.08.1866 | Ernestinenberg b. Költschen (Kr. Oststernberg) | |
|  Occupation | 1895 | Költschen (Kr. Oststernberg) | Arbeitsmann | 
|  Marriage | 27.12.1895 | Lossow (Kr. Landsberg) | |
|  Religion | ev. |