Petersburski was born Jerzy Melodysta into the famous Jewish klezmer (Jewish traditional musicians) Melodysta family.
This is from European BigBands Database.
[ Jerzy Petersburski Orch. ]
b. April 20, 1897, Warsaw, Poland, d. October 7, 1979, Warsaw, Poland
aka: Jerzy Melodysta ( He was born into the well known Warsaw 'klezmer' family Melodysta); George Petersburski
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WIKIPEDIA:
Jerzy Petersburski (1895 - 1979) was a Polish pianist and composer of popular music, renowned mostly for his Tangos, some of which (such as Ta ostatnia niedziela, Już nigdy and Tango Milonga) were milestones in popularization of the musical genre in Poland and are still widely known today, more than half a century after their creation. [1][2]Jerzy Petersburski was born April 20, 1895, to a family of Jewish roots.
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He was out of Poland and out of the Germans' reach during WWII but lost relatives in the Holocaust .
Surviving relatives of his lived in Israel after the war, and one wrote the music for a famous Israeli song called "Our Little Country" (Artzenu ha'ktantonet)