Isaac Rosenberg was born in Bristol, the second of six children and the eldest son (his twin brother died at birth) of his parents, Barnett (formerly Dovber) and Hacha Rosenberg, who were Lithuanian Jewish immigrants to Britain from Dvinsk (now in Latvia). In 1897, the family moved to Stepney, a poor district of the East End of London, and one with a large Jewish community. Isaac Rosenberg attended St. Paul's Primary School at Wellclose Square, St George in the East parish. Later, he went to the Baker Street Board School in Stepney, which had a strong Jewish presence. In 1902, he received a good conduct award and was allowed to take classes at the Arts and Crafts School in Stepney Green. In December 1904, he left the Baker Street School, and in January 1905, started an apprenticeship with Carl Hentschel, an engraver from Fleet Street.