Sergei Plotnikov's birth name is Plotnikov, Sergei Nikolayevich.
Boris Plotnikov's birth name is Plotnikov, Boris Grigoryevich.
Nikolai Plotnikov's birth name is Plotnikov, Nikolai Sergeyevich.
Sergei Plotnikov was born on February 3, 1909, in Saratov, Russia.
Sergei Sage's birth name is Sergei Luzginov.
Sergei Chigrakov's birth name is Sergei Chigrakov.
Sergei Kozlovsky's birth name is Kozlovsky, Sergei Vasilyevich.
Sergei Krupennikov's birth name is Sergei Ivanovitch Krupennikov.
Sergei Krikalev's birth name is Krikalev, Sergei Konstantinovich.
Sergei Kudimov's birth name is Sergei Vladimirovitch Kudimov.
Sergei Kurilov's birth name is Kurilov, Sergei Ivanovich.
Sergei Kuryokhin's birth name is Kuryokhin, Sergei Anatolyevich.
Sergei Machilsky's birth name is Machilsky, Sergei Aleksandrovich.