Mary Sumner, Her Life and Work. E-book. Formato PDF Horatia Erskine   -  Forgotten Books, 2017  - 

Where so many helpers have contributed to the result achieved, to give a list of those to whom thanks are due would be lengthy, and probably incomplete. I have therefore not attempted it, nor have I given, except on a few important occasions, the names of the correspondents who have kindly furnished the various letters of Mrs. Sumner's from which I am able to quote. In some cases it was not desired, and, for the most part, it would have made an interruption without adding to the signifi cance of the passages given.