May Sinclair 
Tree of Heaven 

May Sinclair was the pseudonym of Mary Amelia St. Clair (24 August 1863 — 14 November 1946), a popular British writer who wrote about two dozen novels, short stories and poetry. She was an active suffragist, and member of the Woman Writers’ Suffrage League. "The Tree of Heaven" is a masterly analysis of the younger generation in England—the generation which only a few years ago was condemned as neurotic and decadent and which has vindicated itself by such devotion and simpleness of heart in the ordeal of the war. (Excerpt from Wikipedia)