Although Lenin is described as a "Russian," in fact he was a mixture of various nationalities. It is likely that he was one-quarter Russian, one-quarter German, one-quarter Jewish and at least one-quarter Kalmuck (Mongol), which accounts for his Mongol appearance. Various authorities allege that his wife, Nadezhda Krupskaya was a Jewess and that her family spoke Yiddish in the home.
A report sent to the British government in 1918 by Mr. Oudendyke, the Dutch consul in St. Petersburg, said that "Bolshevism is organised and worked by Jews." The report was included in a pamphlet published as a government White Paper in April 1919 entitled Russia No. 1 (1919) A Collection of Reports on Bolshevism in Russia. However, the pamphlet was quickly withdrawn and reissued with various excisions and alterations made.