Their descendants still live in Russia .
The couple had three daughters ; Vera ( 1906 - 1920 ) , Nyna ( 1909 - 1940 ) , Zena ( 1912 - ? ) .
daughters ' descendants still live in Russia .
The couple had three daughters ; Vera ( 1906 - 1920 ) , Nyna ( 1909 - 1940 ) , Zena ( 1912 - ? ) .