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Dr. Gary J. Gates is a recognized expert on the geography and demography of the lesbian, gay, bisexual, and transgender (LGBT) population.  Justice Anthony Kennedy cited his friend-of-the-court brief in his majority opinion in Obergefell holding that same-sex couples have a constitutional right to marriage.  


He co-authored The Gay and Lesbian Atlas and publishes extensively on the demographic and economic characteristics of the LGBT population.  National and international media outlets regularly feature his work. 

Gates retired as a Distinguished Scholar and Research Director at the Williams Institute, UCLA School of Law.  He has also held positions as a Senior Researcher at Gallup, a Research Associate at the Urban Institute in Washington, DC and Director of the AIDS Intervention Project in Altoona, PA.

He is a Founding Partner of Mandrake Wine and enjoys cooking and photography in his retirement at his home in Ireland.


A native of Johnstown, Pennsylvania, Gates holds a PhD in Public Policy and Management from the Heinz College, Carnegie Mellon University, a Master of Divinity degree from St. Vincent Seminary, and a Bachelor of Science degree in Computer Science from the University of Pittsburgh at Johnstown.


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