WIA GC/10942 | Warburg, Aby to Rathgen, Karl 18/01/1909 | he arranged a meeting with Max Warburg and Professor [Robert] Münzel and asks him to join them... |
WIA GC/12218 | Warburg, Aby to Rathgen 19/06/1915 | Warburg's sister-in-law told Warburg that Mrs. [Emilie] Rathgen did not trust Mrs. [Nancy Keutgen... |
WIA GC/28950 | Ziebarth, Erich to Warburg, Aby 08/07/1916 | has met Warburg's daughter Marietta; is looking forward to seeing Warburg at the meeting of the... |
WIA GC/35159 | Warburg, Mary to Warburg Aby 28/02/1920 | hopes that he will get her letter next day, on Sunday; she has rung [Heinrich] Embden about... |
WIA GC/35324 | Warburg, Mary to Warburg, Aby 02/01/1921 | thanks for letter of 31/12/1920; Mrs. [Frieda] Brandis also wrote; Berger does not allow Mary to... |