Most photographers would have used tables or calculators or flash bulbs. The calculators will still have survived. I used a Kodak one till '64.

Some not necessarily a majority would have used a photo electric meter

They would have bracketed more.

The films were slower in speed and had a larger safety factor.

Think kodachrome was 10 ISO!

The Westons were calibrated in Weston until the Weston III this was a 1/3 of a stop offset from ISO/ASA

Until 1960 the mono films still had a 2.5 stop safety factor for people using tables and calculators. They then reduced it to 1.25 stop cause most people had meters by then.

The tables had more rules than sunny side f/16...