WIA FC/1892/11/16 | Warburg, Max; Warburg, Charlotte, and Warburg, Moritz to Warburg, Aby 24/12/1892 | they received his cable telling them that he might arrive in Hamburg only on Monday [26/12/1892... |
WIA FC/1893/5/1 | Warburg, Charlotte to Warburg, Aby [01/01/1893] | thanks him for letter from Frankfurt; thanks him for his Christmas visit to Hamburg; the Warburg... |
WIA FC/1904/10/2 | Warburg, Fritz to Warburg, Aby 03/04/1904 | He checked Warburg's post and lists letters received; cards from Debby Carr, Gustav Cohn and his... |
WIA GC/1900/29 | Ferber, Kurt to Warburg, Aby 17/10/1900 | recommends a friend, Miss Emilie ['Mila'] Brock, from Hamburg, who is going to Florence in November |
WIA GC/1910/174 | Ferber, Kurt to Warburg, Aby [May 1910] | thanks him for a copy of Warburg's article ['Die Wandbilder'] |