Andreyev had three sons by his second wife Anna, and two children by his first wife Alexandra. He moved to Finland not in 1917 but in 1908. He published a number of plays and stories in 1915-16; journalism dominated in his production only in 1917, and not in 1918, when he embarked on some longer works he did not live to complete. He did not spend his 'final years in abject poverty': his income remained large till within a year of his death, when the Bolshevik coup cut him off from his Russian royalties. RP, 25 November 2012.
The article says "He was active between the revolution of 1905 and the Communist revolution which finally overthrew the Tsarist government." Since when did the Communist revolution overthrow the Tsarist government? Didn't the communists overthrow the provisional government that took over after the overthrow of the Tsar?