Picture #2 has Marble King Cub Scouts and Picture #3 had Marble King Bumble Bees.
Those are from the 1950's or 1960's.
They're very popular and could bring some more money.
Edit: I answered too quickly about Picture #2. Five look like Marble Kings. Looks like there might be an older Akro there also, and then some kind of swirl that I don't recognize -- that could be much newer or ... well, I don't know from that view.
Picture #4 looks like some 1940's Alley Agates plus maybe one Vitro Conqueror.
Picture #5 with the blues are a range of makers.
Picture #6 is mostly Vitros from the 1930's through maybe 1960's. Pretty sure the big marble in the group is newer. Maybe from the 1980's. Could be later.
#11 has a modern one in it. Probably less than 20 years old.
The big marble in #12 could be modern ... or could be an Akro from say the 1940's.
Regarding #10, solid red colored marbles could be valuable if they were a certain type, but it's hard to identify them in a photo ... odds are those are "just game marbles".
And there are more nice mixture in the other pictures.
Sooooo ... mostly vintage. And there are a lot more than I first thought. You could maybe get more than $100 out of this.