Did Aunt Em and Uncle Henry ever visit OZ in the book series?

In L. Frank Baum's original Oz series, Aunt Em and Uncle Henry never visit Oz. They are primarily portrayed as Dorothy's guardians in Kansas, and their experiences are mostly centered around Dorothy's adventures in Oz. Although they are aware of her journey, they remain in the real world while Dorothy travels to the magical land. Subsequent adaptations and retellings may explore their characters differently, but in the original books, they do not enter Oz.