WIA GC/1899/16 | Brockhaus, Heinrich to Warburg, Aby 04/10/1899 | It was a surprise to Brockhaus to read that Warburg had already had his Leonardo lectures; is... |
WIA GC/1901/32 | Dwelshauvers, Clara to Warburg, Mary 22/12/1901 | she is sorry that Mr. and Mrs. Warburg do not leave Hamburg because of poor state of health of... |
WIA GC/1902/114 | Dwelshauvers, Clara to Warburg, Mary 19/05/1902 | she wanted to write for a long time, but had to postpone it; she was glad to meet Warburg, but is... |
WIA GC/1902/116 | Warburg, Aby to Dwelshauvers, Jacques 07/02/1902 | thanks him for a letter; if it had been possible, he would have rushed to Dwelshauvers in a... |
WIA GC/1903/83 | Dweslhauvers, Clara to Warburg, Mary 27/04/1903 | regrets that she could not come to visit them |