WIA FC/1902/9/32 | Warburg, Aby to Warburg, Mary 20/04/1902 | thanks her for the letter in which she commented on André Jolles telling off Warburg; he agrees... |
WIA FC/1905/7/102 | Warburg, Aby to Warburg, Mary 15/08/1905 | thanks her for photographs of their children; she showed them to Mr. [Henri] and Mrs. Hymans... |
WIA FC/1922/8/662 | Warburg, Mary to Warburg, Aby 14/12/1922 | they were busy making Christmas parcels, Marietta for Bremen, Mary for [her nephews] Wilhelm... |
WIA FC/1923/7/11 | Warburg, Mary to Warburg, Aby 07/01/1923 | she has spoken to Anna [Warburg], not yet to Fritz; was happy that both could visit Warburg... |
WIA FC/1923/7/553 | Warburg, Mary to Warburg, Aby 30/12/1923 | encloses attendance register of [Adolph] Goldschmidt lecture, not complete; the hall was nearly... |