Member, Riga City Russian Social-Democratic Workers ’Party (Bolsheviks) Committee. Acitve in 1905 Revol. Frequently subjected to reprisals by tsarist authorities.
1909 emigrated to Berlin. Helped organize Bolshevik groups of Latin Social-Democratic Party abroad. Strove for amalgamation of the party with Russian Social-Democratic Workers ’Party (Bolsheviks).
1914 deleg at 4th Congress of Latin Social-Democratic Party in Brussels, where was elected member. Central Committee, member of Party’s Foreign Committee and member, editorial board, newspaper Zihna. After 1917 February Revol member, editorial board, newspapers Sotsial-demokrat and Svobodnyy strelok.
After 1917 October Revol Party and government work. Chairman, Tambov Russian Communist Party (Bolsheviks) Committee and member, Tambov Province Executive Committee. From 1920 financial work in various Soviet organizations.
Delcg at 8th Russian Communist Party (Bolsheviks) Congress. Later worked in lit and journalism.
Russian Social-Democratic Workers’ Party member from 1904.