Efim Yarchuk was born into a Jewish community at Berezna in the Ukraine in either 1882 or 1886. He was a tailor by trade. He was one of founders of the Chernoe Znamia (Black Banner) group in Bialystok - an anarchist formation that conducted mass agitation among workers and armed attacks on Autocratic officials of Tsarist Russia; he was also a prominent figure in many other revolutionary anarchist groups. Yarchuk dedicated himself to the freedom and liberation of the working-class and was an influential anarchist, who met an untimely death at the hands of the Stalinist purges in 1937. May his memory be a blessing.