Chaim Weizmann Zionist activity, and executed in 1939. His fate became known to his wife and children only in 1955. Maria Weizmann was a doctor who was arrested as part of Stalin's fabricated "Doctors' plot" in 1952 and was sentenced to five years' imprisonment in Siberia. She was released following Stalin's death in 1953, and was permitted to emigrate to Israel along with her husband in 1956. Weizmann was married to Vera Khatzmann. The couple had two sons. The younger one, Flight Lieutenant Michael Oser Weizmann (1916–1942), fought in the Royal Air Force during World War II. While serving as a pilot
Chaim Weizmann he displayed a talent for science, especially chemistry. While in Pinsk, he also became active in the Hovevei Zion groups there. He graduated with honors in 1892, and decided to pursue chemistry as a profession. In 1892, Weizmann left for Germany to study chemistry. He began his studies at the Polytechnic Institute of Darmstadt. To earn a living while studying, he worked as a Hebrew teacher at an Orthodox Jewish boarding school. In 1894, he moved to Berlin to study at the Technische Hochschule Berlin. While in Berlin, he joined a circle of Zionist intellectuals. In 1897, he moved to