WIA GC/2450 | Wortmann, Helene to Warburg, Aby 01/09/1906 | sends him a picture postcard with one of her photographs; thanks him for having motivated her to... |
WIA GC/2910 | Wortmann, Helene and Goedeckemeyer, Martha to Warburg, Aby 29/06/1907 | greetings |
WIA GC/31785 | Warburg, Aby to Warburg, Mary [30/06/1906?] | it is raining, but the air is good; reports on the fellow hayfever sufferers: Dr. [Siegmund... |
WIA GC/31791 | Warburg, Aby to Warburg, Mary 30/07/1906 | weather is ideal; Miss [Helene] Wortmann and Miss [Martha] Gödeckemeyer are departing; he loses... |