Growing up as a Mormon, I was always told that the reason the scriptures never mentioned God's wife, Our Heavenly Mother, was because God thought she was too sacred--God didn't want people mocking her or using her name in vain. That certainly makes sense. One can imagine how bad Jesus might feel if people were running around dissing His mother with cries of "Heather H. Yahweh" every time they hit their thumbs with a hammer.
I think that's also why John McCain and Sarah Palin aren't mentioned on the GOP home page. People would just mock them.