
author
b. 1867
Best known for a spirited early-20th-century defense of smoking, this little-known writer left behind a curious nonfiction work that blends cultural commentary, medical claims, and advocacy. Reliable biographical details are scarce, which only adds to the book’s period flavor.

by William Augustine Brennan
William Augustine Brennan is known today chiefly as the author of Tobacco Leaves: Being a Book of Facts for Smokers, a work published in the 1910s and preserved by libraries and public-domain archives. Catalog and ebook records consistently identify him as William Augustine Brennan and note a birth year of 1867.
Beyond that, confirmed information about his life is limited. The surviving record is much clearer about his book than about the man himself: Tobacco Leaves was written as a fact-filled, strongly opinionated case for tobacco use, giving modern readers a revealing glimpse into the attitudes and arguments of its time.
Because dependable biographical sources are so sparse, it is safest to treat Brennan as an obscure nonfiction writer whose reputation rests on this single unusual title rather than on a well-documented literary career.