I don't use the more "correct" term of "voliner" because my family were podolyers and volinye shouldn't get to claim the rest of Pale of Settlement Ukrainian Jewry.
Based on the fact they used the (pretty standard) same tsvey vovn without a pasekh for "bay," but also "yetst" and not "itst" I'm not so confident one way or the other on whether this guy is a poylisher himself. (Could just be an SEY Ukrayner though.)