Paul L. Gavrilyuk is an associate professor in theology at the University of St. Thomas in St. Paul, Minn. His publications include “Eastern Orthodoxy,” The Routledge Companion to Philosophy of Religion (2007).

Paul Djupe is a political scientist at Denison University in Granville, Ohio, where he specializes in religion and politics. He edits the Religious Engagement in Democratic Politics series and has written about people of faith’s voting patterns, the religious right and faith-based opposition to socialism.

Alfred Bone Shirt of St. Francis, S.D., is the contact person for the Dakota-Lakota-Nakota Human Rights Advocacy Coalition.

Wayne H. Evans is a professor of South Dakota Indian studies at the University of South Dakota in Vermillion, S.D.

John Hickenlooper was elected Governor of Colorado in 2010 after being active and mayor of Denver in 2003. He recognizes and has acted on the Columbus v. Indigenous Peoples’ Day debate.

Ben Nighthorse Campbell, who retired from public office after representing Colorado in the U.S. Senate (1993-2005) and the U.S. House (1987-93), is one of 44 chiefs of the Northern Cheyenne Tribe. He is an attorney in the Washington, D.C., office of Holland & Knight.

Brian Buchanan is chief of the Miami Nation of Indiana.

Melanie Benjamin is chief executive of the Mille Lacs Band of Ojibwe Indians, based in Onamia, Minn.

Jace Weaver is a religion professor at the University of Georgia, Athens, who specializes in American Indian cultures and religious traditions. Weaver directs the university’s Institute of Native American Studies.