I've seen 3 totally white in my life(true Albinos ~ not sure of the bucks) 1 doe 2 bucks, Not in parks but not during hunting season. 1 (the doe) while spotlighting in PA was a true albino (pink eyes).

I've seen numerous Piebalds. The most memorable was the 8pt I had at 42 yards this bow-season. A couple limbs and the thought that the chance would only improve, kept me from shooting. Started to draw on several occasions. As far as I know it's still out there.