William S. Heckscher
In 1932–1933, Heckscher lived in New York where he worked as Panofsky's assistant. During this time, he enrolled in the Graduate Department of Art History at the Institute of Fine Arts at New York University to study American art history. Heckscher returned to Germany to continue his studies in 1934. He and his mother were detained by the Gestapo and interrogated for ten days after being accused of having pacifist connections.
William S. Heckscher
Heckscher briefly taught art at the University of Toronto, then from 1942–1946 taught the German language and phonetics at Carleton College, the University of Saskatchewan, and the University of Manitoba. He moved to the United States in 1947 to teach art history at the University of Iowa. In 1955 he was named Professor of Medieval Art and Iconology for the Institute of Art History at the University of Utrecht, a position he would hold for the following ten years.