Sharon J. Lettman-Hicks is executive director of the The National Black Justice Coalition of black lesbian, gay, bisexual and transgendered leaders who support same-sex marriage.

The Cato Institute is a public policy research organization dedicated to the principles of individual liberty, limited government, free markets and peace.

Beta Israel of North America promotes and preserves Ethiopian Jewish history and culture. Beejhy Barhany is founder and director.

Black Alliance for Educational Options is a national nonprofit group based in Washington, D.C. The alliance works to support parental choice and increase quality educational options for African-American students. Contact through Tanzi West, director of communications.

Nasser Rabbat is Aga Khan Professor of Islamic Architecture in the history, theory and criticism section of the architecture department at Massachusetts Institute of Technology. He is avidly interested in culture and its historical manifestations in architecture. His field is Islamic architectural history, and he is immersed in the history, languages and culture of the Islamic […]

The National Marriage Project at the University of Virginia conducts research and analysis on marriage issues. Brad Wilcox is director.

The National Conference of State Legislatures maintains a page on state laws defining marriage.

Andrew Billingsley is a professor of sociology and African-American studies at the University of South Carolina in Columbia and senior scholar-in-residence at the university’s Institute for Families in Society.

John A. Powell is executive director of the Kirwan Institute for the Study of Race and Ethnicity at Ohio State University in Columbus. He also holds the Williams Chair in Civil Rights and Civil Liberties at the university’s Moritz College of Law. Contact powell through Tara McCoy.