Question:
Which employer did Wolfram von Soden work for in Sep, 1943?

Context:
 Wolfram von Soden works for University of Münster from Jan, 1961 to Jan, 1976. 
 Wolfram von Soden works for Frederick William University from Jan, 1940 to Jan, 1945. 
 Wolfram von Soden works for University of Göttingen from Jan, 1950 to Jan, 1954. 
 Wolfram von Soden works for University of Vienna from Jan, 1954 to Jan, 1961.

Answer:
Frederick William University