Welcome Preppers and Survivalists,
Southern Methodist University,
Central University Libraries,
You already know, the first defensive firearm for you and your family is a handgun. Whether it is a revolver or a pistol, it doesn't matter. Just make sure you know how to safely use it.
You need a method of carrying, in your pocket doesn't count, so you need a holster. Next, you need a way of having extra ammunition, either extra, loaded magazines (for a pistol) or loaded speed strips (for a revolver) in magazine carriers or in your jacket or pants' pocket will work. After that, you need ...
Gun Nuts Media - Lubrication Wars
You and your family need to effectively use your defensive handguns. (Notice, handguns is plural ; - )
You can do this several ways. One way is to take classes. Another way is to watch videos, on ...
New Jovian Thunderbolt - Pinning
YouTube: Think Like A Cop - Best Pro Tip For Being A Better Shooter: Trigger Control, Trigger Reset, Dry Firing
YouTube: Ernest Langdon - Trigger Reset Part 2
YouTube: TC in VA - Ernest Langdon coaches on trigger control
Needless to say, anyone with a camcorder and an internet connection can produce a video and post it on the internet, even about firearms.
So, ... Be careful out there.
New Jovian Thunderbolt - Who Trained My Trainer?