Buy a bucket of waxworms & put them on a small jig or hook about 6" under a float .... pitch it out close to rocky banks and catch Green Sunfish .... cut the Greenies up and bait your Catfish rods. Then the kids get to fish for fish to catch fish with ... double fun !!
Or teach them how to catch nightcrawlers (after a good rain or after watering the yard).
Hotdogs, Beef Melt, Chicken Livers, Chicken gizzards, etc. (anything bloody or with a heavy scent, even if you have to add the scent) will catch Catfish.
A buddy of mine uses popeye jigs & waxworms about 18" under a float on steep rocky banks or cliff ledges for bedding Bluegill, and catches many Catfish in the process. I catch my share on jigs, cranks, & Road Runners when Crappie fishing.