Career
On 20 June 1938, Marchak was arrested and accused of belonging to an anti-Soviet Trotskyist organization. On 23 September 1938, Marchak was found guilty by the Military Collegium of the Supreme Court of the Union of the Soviet Socialist Republics and was sentenced to death. Marchak was rehabilitated by the resolution of the Military Collegium of the Supreme Court of the Union of the Soviet Socialist Republics of 17 June 1958.
Mykola Marchak was born in a peasant family in a small village in Khmelnytskyi Oblast, western Ukraine.