I have seen two doe with horns. One was a mule deer killed near Mayhill, NM in the late 60s, the other was about ten years ago, a doe killed Southwest of Abilene, TX. The horn of both of the deer I seen resembled more a spike, the whitetail did have the start of a fork, but it was not large enough to hang a ring on.
I guess this is kinda like the ole' gal I met once that had a heavier beard than I do.............