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.
Winthrop Pickard Bell
He was born in Halifax, Nova Scotia and educated at Mount Allison University, McGill University, Harvard University (where he studied under Josiah Royce, about whose theory of knowledge he was later to write his doctoral dissertation), the University of Leipzig, and finally at the University of Göttingen (where he completed his doctoral studies under Edmund Husserl).
Edith Stein was among his friends during his Göttingen period.