WIA GC/10083 | Pietsch, Anna [?] to Warburg, Aby 14/11/1896 | dinner invitation |
WIA GC/1016 | Warburg, Aby to Pietsch, Anna 29/10/1894 | congratulates her on her engagement with Alfred Doren; asks her to urge him to work less; gives a... |
WIA GC/103 | Doren, Alfred to Warburg, Aby 30/09/1897 | Congratulations on the forthcoming marriage [Warburg to Mary Hertz]; mentions a wedding present... |
WIA GC/10795 | Warburg, Aby to Warburg, Mary 28/03/1907 | he is waiting to be connected to speak to her on the telephone in the house of Wilhelm [Hertz... |
WIA GC/1284 | Doren, Anna to Warburg, Mary 09/01/1904 | regrets that their husbands do not work in the same place, as their friendship is so good; on the... |