WIA GC/1920/69 | du Bois-Reymond, Lili to Warburg, Mary 07/01/1920 | she has the flu, but is getting better; thanks her for news, is very sorry about Warburg; admires... |
WIA GC/1922/82 | du Bois-Reymond, Lili to Warburg, Mary 17/04/1922 | is interested in Mary's news; hopes that Warburg's condition has improved; is pleased that Max... |