My Emergency kit items
Water is the most important thing to have in my opinion because you can only survive three days without water so you need a lot of it. For example of how important water is, me and my mom have three 5 gallon water containers in case of an emergency and that's just for the two of us. People need to be drinking a gallon of water to be healthy anyways.
Food is also very important because food keeps you strong and alert. You would need non perishable food so it wouldn't go bad. I would say three bags of rice, three bags of noodles, ten cans of different foods to start out with you would need more depending on the size of your family.
First Aid Kit/Medicine is needed in case someone gets hurt and need to clean a wound or if someone gets sick and needs medicine. I think one larger first aid kit is enough you can buy them from a store and also buy whatever medicine you think is needed whether its Tylenol or NyQuil or any other medications
Radio/Batteries are VERY important. That can help you to be alert and know what's going on. It can also help you get rescued people may be able to pick up signals from your radio. Every family should have one. And you need batteries to power it.
Clothing is very important to stay fresh/clean and warm/cool. Each person in a family should pack at least three outfits, a big jacket (if necessary for the type of climate you live in), and lots of socks and underwear of course.
Flashlights/Candles/Matches are very necessary because if a major disaster occurs there will be no electricity for a while and everyone needs lighting to see where they are walking or to even see what they are doing like making food. A family should have a couple flashlights and candles and a few packs of matches.
Pillows/Blankets are needed for sleeping comfortably or if it's just freezing outside you would need a few blankets to stay warm I would say four blankets which is two for each family member and it's just me and my mom.
Weapons may be necessary for hunting purposes if you live in that type of environment or for self defense purposes. You don't necessarily need a weapon it depends on your family this is optional.
Soap so you can stay clean and sanitary whether its to take a shower, wash dishes,clothes, or even a wound you need some type of soap. I'd say ten containers of soap is needed.
Board Games not needed to survive but for entertainment purposes for you and your family. You would probably go crazy and be bored if you had nothing to do for long periods of time. You need to keep your mind simulated.