WIA FC/1922/1/1 | Derenberg, Louise to Warburg, Aby 18/03/1922 | thanks him for birthday greetings to her and her husband's, Julius, birthdays; the family had... |
WIA FC/1926/2/1 | Derenberg, Louise; Derenberg, Julius; Derenberg, Walter and Derenberg, Carl Julius to Warburg... | Louise sends birthday greetings; is sure that the new library building and events like Cassirer's... |
WIA GC 1930/1341 | Cassirer, Ernst to Lecturers of Hamburg University 05/06/1930 | |
WIA GC 1930/1419 | Cassirer, Ernst and Cassirer, Toni to Heimann, Adelheid [January 1930] | invitation to a social evening in the Uhlenhorster Fährhaus on 24/01/1930, programme enclosed... |
WIA GC 1930/1420 | Cassirer, Ernst to Heimann, Adelheid 31/07/1930 | |