author
A late-19th-century freethinker, this author is known for a bold challenge to orthodox religious ideas in The Creation of God (1893). His work explores the origins of the universe, life, and belief in a direct, argumentative style that reflects the rationalist debates of its time.

by Jacob Hartmann
Very little biographical information about this author was confirmed in the sources I found, but Jacob Hartmann is clearly associated with The Creation of God, published in New York by Truth Seeker Co. in 1893.
That book presents a rationalist critique of traditional religion and tries to explain the development of belief, the Bible, and ideas about creation through reason rather than revelation. For listeners interested in the history of skepticism, freethought, or religion-and-science debates, his work offers a vivid example of how those arguments were being made in the late 1800s.
Because reliable biographical records were scarce in the materials available, it is safest to remember him primarily through this surviving book rather than through a detailed personal profile.