My guess is they're referring to Paul, although there is no evidence to suggest he was gay. Some have said that he hated women, and therefore was gay. Personally, I think that's kind of stretching it.
And ye have respect to him that weareth the gay clothing, and say unto him, Sit thou here in a good place; and say to the poor, Stand thou there, or sit here under my footstool: - James 2:3
That was my guess, too. And you are certainlyl correct aabout their lack of evidence.