Maybe?
But we aren't talking about how they did it then. We are talking about how to mimic "then" now.
The physics of taking a photo has not changed in a very long time. One basic that remains is that what we put in front of the camera and focus on and how it is lit has a huge effect on the result. I might even argue that the content and lighting of scene has the largest effect on the result.
And I'm more than willing to admit that my viewpoint that different films have different, well, personalities, is most more related to my synesthesia than actual objective criteria. That said, if it is all due to lighting (and posing. And set up/styling of subject), then why would we have more than one or two films? And why would tens of thousands of words have been spent (probably on this site alone) arguing passionately to the contrary?
Money. Suppliers competing for ours and us competing for our client's or us competing for bragging rights. I'm not saying there aren't differences but, it is my understanding that guys like Karsh and Hurrel bought film like Ilford and Kodak buy silver; in bulk by "truck loads". It was simply a raw materiel in their process, nothing more.
Even assuming that all of this is merely the subjective/personal empirical experiences of an individual shooter, shouldn't we consider that *maybe* that is an important factor in and of itself? That perhaps believing a thing to be so helps the photographer to make it so? Because as much as photography is science and math and a learned set of practical skills, it is nonetheless also an unquantifiable, ephemeral, inexplicable art.
While individually we each may not understand how it all works, photography is not magic, it an industrial process and well understood.
Photography, like knitting and welding, is IMO better described as a craft or skill.
Crafts can be used to make useful things or to express unquantifiable, ephemeral, inexplicable things.
What is unquantifiable, ephemeral, inexplicable; is how we setup a shot, our timing of a shot, where we point our camera, what we focus on, how we get our subjects to make the right expression.
IMO magic bullets (magic films) don't exist.