William S. Heckscher
From 1918 to 1921, the family lived in the Netherlands while Heckscher's father served as the Weimar Republic's ambassador to The Hague; there, Heckscher enrolled at the Nederlandsch Lyceum. Heckscher pursued his interests in history and Flemish art by spending his off hours studying at the Dutch Royal Library, the Mauritshuis and the Kröller-Müller Museum, but was dismissed from the Lyceum in 1920 for "lack of scholarly potential". After the family returned to Hamburg, Heckscher attended the city's Kunstgewerbeschule, now the Hochschule für bildende Künste Hamburg, but failed a class in ceramics.
East Side Hebrew Institute
There were class newspapers, while the upper classes were also instructed to read and use "The New York Times" as a basis. Science fairs were held several times a year. Every class had to present some science experiment and the best one would be chosen as the winner. On Lag Ba'omer, the school used to go to Randalls Island for a picnic, or to the Palisades Park. The school also held the first program in the U.S. for preparing mentally challenged and blind children for their Bar Mitzvah, initiated and directed by Rabbi Raiskin. ESHI also had its own youth movement named “Shimshon" and "Shimshona”, for the boys and girls, respectively, which was founded by Mordecai Wucher of Bridgeport Connecticut.