However, like any new potatoes, they'll be considerably better both nutritionally and for flavor and texture if peeled after cooking. You probably don't want to get involved in doing this by hand right before Thanksgiving dinner, but if you have something like a food mill attachment for a stand mixer, it will mash the potatoes (if that's what you're after) and peel them quite quickly.
You (he) could do that the night beforehand, as long as they're all submerged in water they should be fine. Ina Garten even goes ahead and mashes them ahead of time, here's how she does it: https://food52.com/blog/11742-ina-garten-s-make-ahead-thanksgiving-advice
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