Chaim Gross historian Lewis Jacobs made a 30-minute feature of Gross carving, called "Tree Trunk to Head", showing Gross at work in his East Village studio on a portrait of his wife Renee, who models in the film. In 1949 Gross sketched Chaim Weizmann, President of Israel, at several functions in New York City where Weizmann was speaking. Gross began a portrait in clay and then traveled to Israel in the summer of that year hoping to be able to meet Weizmann and have him sit for a portrait. Weizmann was too ill, but Gross completed the bust in bronze later that
Anna Weizmann Anna Weizmann Anna (Hana, Anushka) Weizmann (; ; 1886 – February 17, 1963) was an Israeli chemist. Anna Weizmann (Hana) was born in a large family to Ezer Weizmann and Rachel-Leah Chemerinskiy. Sister of Chaim Weizmann and Moshe Weizmann. She studied in Zurich from 1905 to 1912. She worked for a year (1913-1914) in Manchester in the chemical laboratory of the University, and lived in the house of his brother. After World War I worked in the Biochemical Institute in Moscow under the direction of . Arriving in Palestine in 1933, she started working at the Institute of Ziv (later