I have an extra Page that I am giving to my wife's parents. The only other citrus they have is a Calamondin. Will this work as a pollinator for the page or would I be better off grafting something to the Page prior to giving it to them?

http://edis.ifas.ufl.edu/CH082 (Millet 1,414-)

Actually your in-laws do not need any other variety to "pollinate" their Page Mandarin. They can just spray the blooms with Gibberellic Acid. If they cannot, or do not, want to look for actual GA3, they can go to just about any garden center, and purchase a small bottle of Tomato & Pepper Bloom Set. I am not sure of the manufacturer, it might be Ortho. Anyway, most any good garden center carries Tomato & Pepper Blossom (fruit) set. Its active ingredient is Gibberellic acid. Just spray the blooms, and the GA3 "pollinates" them. The bonus is no, or very little, seeds. - Millet (1,413-)

Thanks, I'll have them do that when the time comes. It will be a few years before fruiting for this tree anyway, so I've got some time.