The Priceless Pearl, Ruhiyyih Khanum, p217
I have just completed, after eight months of continuous and hard labour, the translation of the history of the early days of the Cause and have sent the manuscript to the American National Assembly. The work comprises about 600 pages and 200 pages of additional notes that I have gleaned during the summer months from different books. I have been so absorbed in this work that I have been forced to delay my correspondence... I am now so tired and exhausted that I can hardly write...The record is an authentic one and deals chiefly with the Bab. Parts of it have been read to Bahá'u'lláh and been revised by 'Abdu'l-Bahá... I am so overcome with fatigue caused by the long and sever strain of the work I have undertaken that I must stop and lie down.
1931-03-03 to Martha Root re the work Dawnbreakers entailed.