The Truth About Jesus by M.M. Mangasarian

M.M. Mangasarian was a prominent American rationalist and secularist near the turn of the 20th century.  Mangasarian served as a pastor at a Presbyterian church in Philadelphia and was also a well-respected lecturer on religion in New York.

The Truth About Jesus, published in 1909, is one of Mangasarian's best known books and is very thought-provoking on the history of Christ.