WIA GC/1908/112 | du Bois-Reymond, Lili to Warburg, Aby and Mary 13/06/1908 | is happy that 'the last Warburg brother' [Fritz M. Warburg] has got engaged [to Anna Beata... |
WIA GC/1908/396 | Oetiker, Anna to Warburg, Aby [1908] | she forwarded two letters and one card to [Aby Warburg and Mary Warburg] in 'Hotel Busoni... |
WIA GC/1908/397 | Oetiker, [Anna und Friedrich?] to Warburg, Aby and Mary 02/03/1908 | thanks him for communication; du Bois-Reymond left; there is a great deal of snow |
WIA GC/1910/142 | du Bois-Reymond, Lili to Warburg, Mary 11/03/1910 | she enjoys her travels very much; she visited Naples and met [Maurice] Sterne; she loves Taormina... |