Great shadow detail

Marco B's example doesn't look at all like the 30's photos, but it is an outstanding example of good technique. (You feel you are there.) Overexposure by one stop is a frequent method to make sure you get adequate shadow detail and sufficiently open shadows with little (but not zero) chance of screwing up the highlights. Bracketing is certainly a well proven technique in uncertain exposure situations. Increasing the exposure while decreasing the development works for certain situations, but it takes some knowledge and experience to make it work consistently. That doesn't mean you shouldn't try. Sheet film makes experimentation like this more economical and easier.

In the 30s the small camera was considered a 4x5. My bet is there is a broader tonal spread from 8x10 negatives than 35mm. Shadows are likely affected

I think it's all in the format. Back then it was all medium and large format with all the formidable things that come with it.

Edit: I'm glad that someone picked this up...

Has anybody mentioned pre-flashing film to boost shadow detail?