He did seem to shoot whatever film he had in quantity that was available, from what I've read, and retouching is an important part of the Hurrell look, but retouching directly on the negative, not on an interneg, as I understand it. This was largely the norm in professional portraiture in his context and beyond.

Hurrell liked his subjects to use makeup only on the eyes and lips, to retain the glow of fresh clean skin. Blemishes could be corrected with pencil and knife on the neg.