Kirstein Berakh (Berach) Fayvovich (1912–1943).

From 1928, Berakh Kirstein participated in the revolutionary movement and was a propagandist for the cell. In 1935, while serving in the Latvian army, he also carried out illegal work and was a member of an illegal cell. He was arrested for his revolutionary activities and sentenced to four years in prison. From 1940 to 1941, he worked as the head of the VAPP (All-Russia Union of Proletarian Writers) department. During the Second World War, he voluntarily joined the Soviet Army and was killed in action in 1943.