H. Emilie Cady was an American author born in 1848 and died in 1941. Her works mainly focused on personal growth, spirituality, and women's rights, which had a profound impact on the society of the late 19th and early 20th centuries.
Source: The Collected Works of H. Emilie Cady: Spiritual Guidance Books & New Thought Classics: Lessons In Truth - Practical Christianity Course + How I Used Truth & God + A Present Help