Brief an [Wilhelm] Neuß
Durham, 11.06.1946 [11.VI.1946]Brief an [Wilhelm] Neuss
Durham, 17.10.1946 [17.X.1946]Brief an [Wilhelm] Neuss
Durham, 01.01.1947 [1.I.1947]Brief an [Wilhelm] Neuss
Bordeaux, 19.05.1938 [19 Mai 1938]Brief an Dekan [Wilhelm Neuss]
Bonn, 14.05.1924 [14. Mai 1924]Brief an Kollege [Wilhelm Neuss]
Bonn, 21.02.1944 [21.2. [19]44]Brief an Kollege Neuß
Bonn, 15.02.1944 [15.2. [19]44]Postkarte an Prof. Neuss, Bonn / Rhein, Humboldtstr.
Paris, 12.1934 [Dez. 1934]