Read a 2010 Faith Communities Today study that brings together 26 individual surveys to assess racial diversity in churches in the U.S.

Read a March 24, 2013 Huffington Post article about studies tracking racial diversity, or its lack thereof, in houses of worship.

View a compilation of statistics on racial diversity in houses of worship; between 5 to 7.5 percent of churches are considered racially diverse.

The Rev. John Charles Pollock of Devon, England, is the official biographer of Billy Graham and the author of The Billy Graham Story, the revised and updated edition of To All the Nations.

Read a Jan. 16, 2012 Christian Post article about “Church Diversity Week” and the lack of diversity in most U.S. houses of worship.

Popular novelist Patricia Cornwell, whose books include the Kay Scarpetta mystery series, grew up down the road from Billy and Ruth Graham in Montreat, N.C. Cornwell is the author of Ruth, A Portrait: The Story of Ruth Bell Graham. She lives in Manhattan and South Carolina.

Roger Bruns, an independent scholar who is retired from the National Archives and Records Administration, is the author of Billy Graham: A Biography. Bruns lives in Reston, Va.

George A. Yancey is an associate professor of sociology at the University of North Texas in Denton. He is the author of One Body, One Spirit: Principles of Successful Multiracial Churches.

The Rev. David A. Anderson is senior pastor of Bridgeway Community Church, a nondenominational, intentionally multicultural church of more than 2,000 in Columbia, Md. Anderson also is president of BridgeLeader Network, a nonprofit group that trains congregations, colleges, companies and other groups in multicultural work.