WIA GC/1896/36 | Jolles Singels, Jacoba Cornelia to Warburg, Aby 13/07/1896 | she and her son [André] are very happy to read that Warburg will come to Holland; they cannot... |
WIA GC/1896/37 | Jolles Singels, Jacoba Cornelia to Warburg, Aby [20/10/1896] | she will move to Amsterdam and live with her son [André Jolles]; he has a post in publishing... |
WIA GC/1896/38 | Jolles Singels, Jacoba Cornelia to Warburg, Aby 24/12/1896 | Christmas greetings; her son André cannot go to Hamburg, but he will try to get to Berlin |
WIA GC/1897/38 | Jolles Singels, Jacoba Cornelia to Warburg, Aby 17/07/1897 | congratulates him on his engagement; hopes to meet Warburg and his wife in the autumn in Florence |
WIA GC/1898/37 | Jolles Singels, Jacoba Cornelia to Warburg, Aby 05/05/1898 | thanks him for the lovely time Mr. and Mrs. Warburg gave her son [André Jolles] in Florence |