WIA FC/1902/7/1 | Loeb, Betty to Warburg, Mary 31/07/1902 | congratulations on the birth of the second child, Max Adolph, sends a hand made embroidered blanket |
WIA FC/1921/25/5 | Warburg, Paul to Warburg, Aby 05/09/1921 | the journey went well; he has reported everything to Mary Warburg who is very happy with Warburg... |
WIA FC/1921/3/2 | Derenberg, Louise to Warburg, Aby 18/03/1921 | congratulates him on his daughters; Detta [Marietta Warburg] has passed her exams, Miss Henckel... |
WIA FC/1922/1/2 | Derenberg, Louise to Warburg, Aby 10/06/1922 | hopes that Warburg has received [a book by] [Fritz] Reuter, in the library of their late parents... |
WIA FC/1922/8/549 | Warburg, Aby to Warburg, Mary 15/10/1922 | the reaction to the visit of his family has set in; feels very lonely; it might have been a... |