David Isaac Dobnievski, known to history as David Dubinsky, was born February 22, 1892 in Brest-Litovsk (currently Brest, Belarus), the youngest of five boys and three girls [REF].
During the Russian Revolution of 1905, David attended a mass meeting which led to his kinship, if not actual membership, with the Bund, a Jewish socialist organization close to the Russian Social Democratic Workers Party.