WIA GC/10585 | Warburg, Aby to Warburg, Mary 06/08/1905 | her sent a letter to Walter Lenel congratulating him on his engagement [to Luise Borckenhagen... |
WIA GC/2712 | Lenel, Walter and Lenel, Luise to Warburg, Aby and Warburg, Mary 02/01/1907 | New Year greetings |
WIA GC/2713 | Lenel, Walter and Lenel, Luise to Warburg, Aby 02/01/1907 | New Year greetings; best wishes for the 'Habilitation' |
WIA GC/31693 | Warburg, Mary to Warburg, Aby 05/08/1905 | thanks him for letter; would have liked to hear Warburg and [Carl] Justi moan about Thode... |
WIA GC/36240 | Warburg, Mary to Warburg, Aby 12/05/1922 | hopes that he is not too agitated about the change in nursing personnel; Mrs. [Luise] Lenel, from... |