Alley for both. The first is from St. Mary's factory. Any swirl can exhibit the buttcrack fold but it's the rest of the marble that matters. The buttcrack fold is cause by the ingot folding upon itself. The ingot is a cut section of the stream of glass. Imagine the stream coming from the tank, and the cutter is cutting it into lengths about the size of a tootsie roll. Then fold that tootsie roll in half. Now you have the typical JABO classic pattern. Roll it into a sphere and you can see why you have the buttcrack. But look a the marble you have... that swirl pattern can't occur just by folding a tootsie roll in half, right? That shows more involvement, so it's not likely a JABO classic. Then the glass comes in and confirms.
The second marble is also an Alley, but this one is from the Pennsboro factory and a named type, called a Tater Bug. They are pretty collectible.