WIA FC/1899/13/68 | Warburg, Mary and Warburg, Aby to Warburg, Charlotte 26/11/1899 | Mary thanks her for letter and name of friend in Paris; Warburg is working very well, making new... |
WIA FC/1900/7/33 | Warburg, Aby to Warburg, Charlotte and Warburg, Moritz 16/04/1900 | congratulates his parents on the birth of Malice's [Max and Alice Warburg's] son; explains that... |
WIA FC/1902/11/1 | Warburg, Charlotte to Warburg, Aby and Warburg, Mary 07/01/1902 | sends birthday greetings to Marietta; thanks Warburg for a letter; comments that Warburg's... |
WIA FC/1903/6/39 | Warburg, Aby to Warburg, Mary 03/08/1903 | he visited the big art exhibition, many good portraits, but nothing spectacular; he then visited... |
WIA FC/1903/6/42 | Warburg, Mary to Warburg, Aby 04/08/1903 | thanks him for letter; finds the [Werner] Weisbach and [Paul] Schubring 'affair' [Habilitation... |