I still would like to see the seams on the maybe sweet pea. I believe sweet peas to be from the 1930's. Could be a little later.
The blue-based marble near the top middle of this last photo is a Mexican marble and modern.
The yellow marble with the red patch to its right might be a Peltier Peerless Patch. If so, then it's from the 1930's.
The red and brown and white one toward the right side of the photo has a pattern which some famous marbles from the 1960's have. That's a Vitro All-Red pattern. However, if it has an iridescent finish (sort of pearly or oily looking) then it would be a modern marble (Mexican or Chinese).
(Vitro and Peltier are American marbles.)
I see some other possibly older marbles in this last photo.