If I may clarify.... of those 18 people, 10 were high school players and 11 were under-age. And only 6 of them died via concussion related occurrences, the remaining children, and they were very much children, were killed through bodily injury and otherwise.
It must also be added to this debate that football injuries were prevalent back then because the way the game was played. It was, as everyone knows, significantly more physical than it is played today. The rules were few, and the types of plays allowed actually invited serious injury. Of course, many of those rules & plays were changed the following year as a result of the deaths.
Reeeeeegardless....... any time you have big strong guys colliding into each other like mountain goats, there are going to be injuries, and experts pretty much agree the helmet science is just not going to remedy it anytime soon despite their (the NFL) propaganda claiming advancement. Fine... perhaps leather helmets and friendlier game play is not the answer, and call it stupid or ridiculous if you will. But understand this.... the human body, joints, hips, back, neck, head, organs, etc, was not designed to do or take the kind of continued physicality that exists in football. The human body is an extremely frail piece of hardware; one of the most poorly constructed in all the animal kingdom in fact. So unless you plan on wrapping guys heads and necks in huge puffy marshmallow like head gear sized in ridiculous proportions, don't expect a solution to head trauma anytime soon.