VERY interesting issue, thanks for sharing. I didn?t know they referred to Ladder companies as only ?Truck? companies back then, a picture from the essay was titled ?20 Truck? (from 1908). I mentioned this fire as I teach U.S. history - it was actually in the curriculum briefly. Main Point to students was to show the massive change this fire led to in the workplace. Teaching older students, I did show black and white primary source pictures like shown in the essay. Figured with a topic as important as this, might as well show them all I could find. Students were genuinely interested in learning about this fire - which was cool to see.