Owing to the revolutionary temper of the times, the middle class and the bourgeoisie had been excluded from the elections to this body, a decision which was denounced by the centrist Constitutional Democratic Party (known as the K-D, or Kadets).

[2] With the Monarchist Right and the Center both effectively excluded, and the Bolshevik Left boycotting, the delegates elected to the Siberian regional parliament were dominated by members of Chernov's PSR.

[3] After a delay necessitated by the inability to assemble a quorum of elected representatives, on the night of January 28/29, 1918, some forty delegates finally succeeded in gathering in Tomsk to perform their business.

According to William Henry Chamberlin, "It derived its claim to authority from the Government, headed by a Socialist Revolutionary named Derber, which had been elected in February by the Siberian Regional Duma, a body which had been chosen on the basis of universal suffrage and which, like the Constituent Assembly, had been dispersed by the Bolsheviki.

In September 1918, Pyotr Vologodsky, representing the Provisional All-Russian Government, traveled to Eastern Siberia according to Chamberlin, "...and obtained the abdication of the phantom Derber Cabinet in Vladivostok.