WIA FC/1896/8/52 | Warburg, Aby to Warburg, Charlotte and Warburg, Moritz 13/11/1896 | apologizes for late reply; he was very pleased to read that his father got interested in art... |
WIA FC/1897/27/100 | Warburg, Aby to Warburg, Charlotte 17/11/1897 | thanks her for forwarding letters from America; is very happy with Paul Warburg's letter; is... |
WIA FC/1897/27/103 | Warburg, Mary to Warburg, Charlotte 06/12/1897 | apologizes for late reply; the letter which seemed to have got lost has not turned up so far... |
WIA FC/1897/27/110 | Warburg, Mary to Warburg, Charlotte 27/12/1897 | apologizes for delay in writing; is pleased that her watercolour arrived well; her brother... |
WIA FC/1897/34/29 | Warburg, Olga to Warburg, Mary 30/12/1897 | thanks for letter and photograph, Warburg looks as if he has lost weight; Max requests a... |