"A series of letters supposedly written by the angel of a young man who had been killed in battle." -Star Tribune, Feb. 1, 2002

"Thy Son Liveth...dealt with a personal experience of a mother whose son died in France." -The Birmingham News, March 25, 1935

"Her best know work, Thy Son Liveth...gained international fame for her." -Battle Creek Enquirer, April 26, 1935

Grace Duffie Boylan (1861–1935) was an American writer who wrote "Thy Son Liveth: Messages From A Soldier To His Mother" It is her account of what her son communicated to her about death using morse code and automatic writing after his death on the battlefield in France during World War I.

This book served as the basis for his movie A Rumor of Angels (2001), starring Vanessa Redgrave.