WIA FC/1876/2/7 | Warburg, Charlotte to Warburg, Aby and siblings 21/08/1876 | they are leaving Ostend the next day; sends greetings to grandmother [in Hamburg, Sara Warburg... |
WIA FC/1879/5 | Warburg, Charlotte, Warburg, Moritz and Warburg, Sara | Correspondence from and to Aby's Parents and Grandmother in 1879 |
WIA FC/1879/5/2 | Warburg, Aby to Warburg, Sara and Zagury, Marianne 11/04/1879 | apologizes to grandmother for short letter; the first days of his stay [in Frankfurt] he visited... |
WIA GC/1918/144 | Warburg, Aby to Brahm, Ludwig 27/06/1918 | Warburg's late grandmother [Särchen or Sara Warburg] told him of the link between the Warburg and... |
WIA GC/1918/145 | Warburg, Aby to Brahm, Ludwig 08/07/1918 | thanks him for information on the Brahm family; Warburg's great great grandfather was Dr... |