WIA GC/25127 | Warburg, Aby and Warburg, Olga to Warburg, Charlotte 19/03/1880 | Warburg is pleased to tell his parents that he was given very good marks at school; Dr. Volter... |
WIA GC/25129 | Warburg, Aby to Warburg, Max 28/03/1880 | thanks him for a letter; reports on the Seder evenings which went very well; Alex visited them... |
WIA GC/25133 | Warburg, Aby and Warburg, Max to Warburg, Moritz and Warburg, Charlotte 31/05/1881 | Warburg writes that Dr. Herrmann praised his essay and gave him good marks; he even got good... |
WIA GC/25135 | Warburg, Paul to Warburg, Aby 28/12/1881 | apologizes for not writing sooner; describes his music lesson with Mr. Klietz; Felix and Paul... |
WIA GC/9555 | Goldschmidt, Mayer Seligmann to Warburg, Aby 05/06/1879 | he is ashamed that he has not replied to Warburg's first letter and has received a second letter... |