author
1815–1896
A 19th-century physician and reform-minded writer, he used his books to argue that many illnesses could be prevented through better habits and a more humane approach to health. His work blends medical advice, moral conviction, and a strong interest in social improvement.

by John Ellis
John Ellis was an American physician who lived from 1815 to 1896. The sources available here identify him as the author of works including The New Christianity and The Avoidable Causes of Disease, Insanity and Deformity, suggesting a career shaped by both medical practice and broad religious or social concerns.
His writing appears to focus on prevention, public health, and personal conduct rather than narrow clinical topics alone. That gives his work a distinct 19th-century character: practical, reformist, and deeply interested in how everyday life affects health and well-being.
Some biographical details are sparse in the material I could confirm, so this overview stays close to what is clearly supported. Even so, his surviving publications show a writer trying to connect medicine, morality, and social progress for a general readership.