Those brown ones are benningtons. They were made both in Germany and America. Many marbles, even back in the 1800s, were imported from Germany and other places. The dots on them are from where they were touching other marbles while the glaze was wet and they were fired in the kiln. They are cool and old, but not worth very much because they are so common. I also see some Japanese and other Asian marbles there.
It's also noteworthy that some of the marbles pictured are newer, so she must have added one here and there as she came across them through the years.
Take some more pics of that black one with the bands of colors on it, that one might be something or might not, not sure.