WIA FC/1900/7/35 | Warburg, Aby to Warburg, Charlotte 01/05/1900 | two days ago his hayfever started; he is preparing for his stay in Lucerne, Mary might come after... |
WIA FC/1900/7/78 | Warburg, Charlotte to Warburg, Aby and Warburg, Mary 25/11/1900 | Nina and baby Bettina are very well; is pleased to read that Detta [Marietta Warburg] is better... |
WIA GC/1900/90 | Stettiner, Richard and Nördlinger, Marie to Warburg, Aby 22/11/1900 | informs him of his engagements and asks him to give André Jolles the good news |
WIA GC/1906/509 | Nördlinger, Marie L. to Warburg, Aby 19/11/1906 | thanks him for the essay on the Flemish tapestries |