The Rev. Meg Barnhouse is a Unitarian Universalist pastor in Austin, Texas. She once preached a sermon titled “The Rapture in America.”

Heather Jacobson is assistant professor of sociology and anthropology at the University of Texas at Arlington. Her interests include sociology of families, the intersection of social inequality (race, class, gender) and families and family formation.

David Reagan is founder and director of Lamb & Lion Ministries, a Christian organization that proclaims the imminent return of Jesus. It is based in McKinney, Texas.

Irvin Baxter is founder and president of Endtime Ministries, a Christian non-profit organization located in Plano, Tex.

Alan Lamar Patterson, aka AL P, got a law degree from Thurgood Marshall School of Law at Texas Southern University and then became a minister. He is a staff member of Mount Corinth Church in Houston, where he directs the monthly Friday Night Live, the Happy Hour of Power.

James Ellor is a professor of social work at Baylor University in Waco, Texas, and editor of the Journal of Religion, Spirituality and Aging. His degrees are in divinity and social work, and his publications include Aging, Spirituality and Pastoral Care: A Multi-National Perspective.

The Texas Freedom Network is a pro-evolution citizens watchdog group that monitors science education standards in the state. Its Texas Faith Network is a group of clergy and laypeople who would like to keep religious teaching about the origins of the world and of life out of the public school classroom.

Daniel K. Brannan is a professor of biology at Abilene Christian University in Abilene, Texas. He is an expert on evolutionary biology-Christian theology interfaces. He wrote an article for the Metanexus Institute’s online journal titled “Confessions of an Evolutionary Biologist,” in which he explored his belief in evolution and God.

Daniel I. Bolnick is an associate professor of integrative biology at the University of Texas at Austin. He can discuss natural selection and the creationism-evolution conflict.