Cait O'Darling and Stephanie A. Griffith, a lesbian couple who said they legally “married” as a same-sex couple in Toronto in December 2002, have asked the Supreme Court of Oklahoma to recognize a divorce decree granted by a state judge. The judge, who was unaware the two parties were of the same sex, later vacated the decree, noting that Oklahoma law does not recognize “any marriage between persons of the same gender.”

Alan Sears, president of the Alliance Defense Fund, which filed a friend-of-the-court brief last Monday, says activists such as the Oklahoma lesbian couple are trying to “redefine marriage – through the avenue of ‘divorce’ – ...