Duane Jeffery
A Mormon Evolutionist
A life spent bridging science and faith
Cloth – $110
978-0-252-04991-0
Paper – $17.95
978-0-252-08957-2
eBook – $14.95
978-0-252-04907-1
Publication Date
Paperback: 09/22/2026
Cloth: 09/22/2026
Cloth: 09/22/2026
Series: Introductions to Mormon Thought
About the Book
Controversy and strong official disfavor failed to shake Duane Jeffery’s tenacious efforts to fit the theory of evolution into the doctrines of the Church of Jesus Christ of Latter-day Saints. Steven L. Peck traces Jeffery’s life from his rural upbringing and training as a geneticist through a career marked by conflict around his dedication to bring science into classrooms at Brigham Young University. As Peck shows, Jeffery met resistance from Church leaders with a patient, years-long campaign to build understanding. He corrected misinformation within Church culture and educational systems and defended science’s place in education and faith. Jeffery’s commitment to honesty, intellectual curiosity, and openness encouraged and smoothed often tense conversations about the union of scientific evidence and religious faith. At the same time, his work gave Brigham Young credibility as a research university while his writing and mentorship inspired later generations to continue the dialogue.An overdue look at a singular figure, Duane Jeffery tells the story of the scientist whose work reshaped how many Church members understand evolution.
About the Author
Steven L. Peck is an evolutionary biologist at Brigham Young University. His many books include Evolving Faith: Wanderings of a Mormon Biologist.Reviews
“In Duane Jeffery, Steve Peck introduces readers to a genuine Mormon hero. The story of Duane Jeffery bringing evolution to BYU is a story of intellectual courage and determination, but also of how a nuanced and powerful faith can overcome institutional opposition and change both hearts and minds.”—Michael Austin, author of The Testimony of Two Nations: How the Book of Mormon Reads and Rereads the Bible