From 1850 until around 1915, miner’s headgear generally consisted of cloth or canvas hats with leather brims and metal lamp brackets on the forehead that allowed them to hang a source of light on the ...

Prior to the 1920s, miners wore a soft cap made of cloth or canvas with a leather brim and lamp bracket to hold their light. But in 1919, Edward D. Bullard of San Francisco, California developed the ...