Rick, now that you are in the country, those are tools also. As has been said, check for obstructions in the barrels, can do this by running a rod or stick with the actions open down the barrel from the muzzle end.
That 16 gauge is a sweetheart of a gun. A shotgun that will bring down rabbits and birds as well as deer with a slug in it. A good home defense gun also. Many debate the issue of the sound of "racking" the slide for home defense. I personally don't keep one in the chamber, but it is loaded in the tube so if in need quickly I can grab, rack and go. The negative discussion on this issue is giving away your presence to a bad guy(s) if your home is being invaded. It is a personal choice.
The 22, as others have said, great guns. Cheap to shoot, low to no recoil, tons of fun. It still is a weapon and will kill, so be aware.
The revolver, 38, many call that type a "Detective's Special". This also makes a great gun for the bedside table. Middle of the night situations it is instantly available and quite competent at close ranges. There are also shot shells available, great for hiking and shooting snakes. Pull the hammer back and if it has a point on the indside this is your firing pin. If that is the case, this is the type of revolver that you must carry on an empty chamber. This is the type of revolver that if dropped on the hammer a possible discharge could happen so carrying on an empty chamber prevents that.
Storage, if in your shop, like your other tools be aware of surface rust situations. Complete dissassembly for cleaning, not needing unless you are experiencing problems with the gun. Do not store in a gun case, zippered or hardshell as they will hold moisture and promote rust. After handling, wipe down with a cloth, I use Rem oil found in a spray can in Walmart. All three of these shoot ammo that should be found in most Walmarts. For the 22 it won't be as finicky about ammo due to being a bolt action. But the Thunderbolts are notorious for being junk so stay away from them. 22 ammo is different from brand to brand and many 22 rifles are brand sensitive meaning if you are really looking for tight groups on a target, don't blame the gun until you have shot many brands through it. Keep your targets, shoot from a bench rest (another wood working project!) and label them, it is a fun way to learn your gun's desires. The 16 gauge, my pump and bolt action seem to prefer high brass, don't know why, but again, buy different ammo in small quantities and notice how they shoot, your aim point and how the gun cycles them.
Along the top of the barrel will be the brand name of your gun. Google that and a wealth of information will appear. Through the internet, I have amassed reams of printed material about my guns and how to care for them, field strip them, repair, maintain as well as use.
Well that is all off of the top of my head. What a trio. Hope you respect the honor of being the holder of these through your lifetime as they aren't guns as much as family history. You are the current owner of that history. I have a couple of my dad's guns and have written their history down so my girls will know it correctly when I pass them on to them. Feel free to PM me for specific information. Get yourself some safety glasses, ear muffs (and a couple extra because guns attract people who want to shoot). Be safe and have fun!!!
God and family, the rest is icing on the cake.
I'm so far behind, I think I'm in first place.
Premier Bovine Scatologist
Host of the 2015 FAMILY WOODWORKING GATHERING