WIA FC/1911/5/10 | Warburg, Aby to Warburg, Mary 22/05/1911 | the previous day was a beautiful spring day; he went to Potsdam to visit du Bois-Reymond; they... |
WIA FC/1920/1/130 | Warburg, Mary to Warburg, Aby 15/12/1920 | thanks for three letters; Doren has rung her and written to her about his visit to Warburg, Saxl... |
WIA FC/1927/8/19 | Warburg, Aby to Warburg, Mary 20/01/1927 | he will start his return journey on 24/01/1927, finds that the altitude is too much for his heart... |
WIA FC/1927/8/25 | Warburg, Mary to Warburg, Aby 23/01/1927 | thanks him for his photograph, standing in the snow ['Sportbaubu'] [20/01/1927]; reminds him not... |
WIA GC 1930/1908 | Bing, Gertrud to Leo, Ulrich 18/06/1930 | |