Familie: UKENDT Sitnikov / Olga Ervolder (F889)
 | Pelagea Ivanovna Ellinskaja (1866-1942) |
| Ekaterina Ervolder (1891-1976)  |
 | Journalist Vladimir Ervolder (1896- ) |
| Nadezjda Ervolder (1898- ) |
| Olga Ervolder (1894- ) 
|
| Pelagea Ivanovna Ellinskaja (1866-1942) |
| Ekaterina Ervolder (1891-1976) |
| Journalist Vladimir Ervolder (1896- ) |
| Nadezjda Ervolder (1898- ) |
| Olga Ervolder (1894- )
|