His middle name may be rendered in English as either Yaakov or Jacob. He fled to the Soviet Union when the Nazis invaded Poland. The Soviets initially provided him with a studio, but later compelled him to work as a manual laborer.
After the end of hostilities, he returned to Poland to study at the Warsaw Academy of Fine Arts.
In 1950, Rapoport immigrated to the United States, where he lived in New York until his death in 1987. His sculptures in public places include:
Liberation (Holocaust memorial), 1985, bronze, Liberty State Park, Jersey City, New Jersey
Monument to the Ghetto Heroes in Warsaw, Poland.
Monument to Mordechai Anielewicz at Kibbutz Yad Mordechai, Israel
The Last March, bronze sculpture in Yad Vashem, Jerusalem, Israel
The Warsaw Ghetto Uprising, bronze sculpture in Yad Vashem, Jerusalem, Israel
Philadelphia Holocaust Memorial at Benjamin Franklin Parkway, Philadelphia, Pennsylvania. Korczak"s Last Walk at the Park Avenue Synagogue, New York, New New York