Dyroff, Adolf
born 2. February 1866 in Aschaffenburg-Damm; died 3. July 1943 in MünchenBrief von Adolf Dyroff an Hans Vaihinger, 24.04.1925
Bonn, 24.04.1925Foerster, Friedrich Wilhelm
born 2. June 1869 in Berlin; died 9. January 1966 in Kilchberg (Kanton Zürich)Brief von Friedrich Wilhelm Foerster an Hans Vaihinger, o.D. [04.08.????]
Weichselmünde ; Freiburg, o.D. [04.08.????]Brief von Friedrich Wilhelm Foerster an Hans Vaihinger, o.D. [16. 12.????]
Freiburg, o.D. [16. 12.????]