WIA FC/1912/10/4 | Warburg, Marietta to Warburg, Aby and Warburg, Mary 27/05/1912 | thanks them for presents; Frede, in particular, is happy with her guinea pig, called 'Muffel... |
WIA FC/1912/7/2 | Warburg, Frede to Warburg, Aby and Warburg, Mary [1912] | letters from c. 1909 to 1913; all of them originally undated; all of them tentatively dated; a... |
WIA FC/1917/10/1 | Warburg, Max Adolph to Warburg, Aby and Warburg, Mary 20/05/1917 | thanks for letter from Mary on 17/05/1917, is pleased that the parents have gone on walks... |
WIA FC/1917/6/2 | Warburg, Frede to Warburg, Aby and Warburg, Mary 18/05/1917 | thanks them for their postcard; assures them that she is well; next day they will visit... |
WIA FC/1921/1/186 | Warburg, Mary to Warburg, Aby 23/04/1921 | thanks for letter of 20/04/1921, letters take two days; he can rest assured that his letters will... |