Jon W. Davidson is Legal Director at Lambda Legal, a national legal organization committed to achieving full recognition of the civil rights of lesbians, gay men, bisexuals, transgender people and those with HIV.

Ken Choe is Deputy General Counsel and Counselor to the Office of Health Reform at the Department of Health and Human Services. Before that, Choe was a Senior Staff Attorney at the LGBT Rights and AIDS Projects of the national ACLU. He also served as a political appointee in the Clinton Administration focusing on health care law and policy.

Rea Carey is executive director of the National Gay and Lesbian Task Force.

Kate Kendell is executive director of the National Center for Lesbian Rights.

Chad Griffin is president of the nation’s largest gay advocacy organization, the Human Rights Campaign.

David M. Horowitz is national president of Parents, Families and Friends of Lesbians and Gays. Regional directors are listed here.

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.

Mel White is founder and director of SoulForce, an interfaith group committed to “ending spiritual violence perpetuated by religious policies and teachings against gay, lesbian, bisexual and transgender people.”

E.J. Graff is the author of What is Marriage For?: The Strange Social History of Our Most Intimate Institution (Beacon Press, 2000) and an advocate for same-sex marriage.