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.
Eli Rubenstein
He attended Eitz Chaim School and Yeshivas Ner Yisroel of Toronto in Toronto as well as Telshe Yeshiva in Cleveland and Bais Hatalmud Yeshiva in Jerusalem, Israel. He received a degree in humanities from York University in Toronto, as well as studying at Yad Vashem in Jerusalem, Israel, the University of Judaism in Los Angeles, California, and the International Institute for Secular Humanistic Judaism in Farmington Hills, Michigan.