WIA FC/1903/4/9 | Kohn-Speyer, Olga to Warburg, Mary 23/12/1903 | thanks her for informing her of the birth of the Derenberg baby [Walter]; apologizes for late... |
WIA FC/1904/12/3 | Warburg, Nina to Warburg, Mary and Warburg, Alice 07/02/1904 | thanks them for letters, is grateful for their loyal love; is grateful that everybody will keep... |
WIA FC/1904/8/4 | Warburg, Charlotte to Warburg, Aby and Warburg, Mary 02/03/1904 | thanks Warburg for his birthday letter with the news on his research and the search for an... |
WIA FC/1921/1/116 | Warburg, Mary to Warburg, Aby 13/03/1921 | is annoyed with him because he is still thinking about her trip to Naumburg; what Mrs. Brandis... |
WIA FC/1921/1/665 | Warburg, Mary to Warburg, Aby 29/12/1921 | sends New Years greetings; is convinced that 1922 will see Warburg back in Hamburg; but counsels... |