In 1932, Ed McGivern, retired lawman and shooting expert in Montana, made the following observations in the opening chapter of his book, Fast and Fancy Revolver Shooting: (boldface in the original)
[The state of crime in the USA]…makes one wonder about our radical agitators who want to enact a law against manufacture, sale, or possession of firearms anywhere within the United states, such law to apply to weapons that can be concealed on the person. Just how could such a law be enforced so as to disarm the crook—he being the target aimed at, and, we are quite sure, he will be the very one that would not be hit. As the crook has no regard for the law and does not submit to the rulings or provisions of any angle of the law, just how is he going to be reached through such a law in any better way, or as well, as he is today, and when there is still a chance that the citizen may be armed, and so enabled to protect himself, in the other case the law abiding citizen will be disarmed, making it absolutely safe at all times and places for the crook to attack him, his home, his family, or his property…
The crook, through very easy bootlegging operations, can secure a full supply of … arms and ammunition…He will then be the only one to “own and bear arms,” while that privilege ...will be denied [the law-abiding] citizen.
[In mentioning the establishment of the National Rifle Association] In the year 1871…we had not as yet developed a group of meddlers and fixers, tampering and experimenting with the Constitution…