Railway engineer. Major-general. Deputy head of the administration of Russian railways, 1912. During the February Revolution 1917, close collaborator of Bublikov, Minister of Transport in the Provisional Government.
Emigrated to the USA, 1918-1919. Returned to the Soviet Union. Close collaborator of Krasin in the rebuilding of the transport system after the chaos of the revolution and civil war.
Disappeared from the scene, probably perished in the Gulag.