Betty MacDonald was born in Boulder, Colorado, and grew up in various places in the West. The Mrs. Piggle-Wiggle stories were first told to her daughters, Anne and Joan. MacDonald is also the author of The Egg and I, Anybody Can Do Anything, Nancy and Plum, and Onions in the Stew. Mrs. MacDonald died in 1958.
Karen White is the New York Times bestselling author of more than twenty novels, including the Tradd Street series, The Night the Lights Went Out, Flight Patterns, The Sound of Glass, A Long Time Gone, and The Time Between. She is the coauthor of The Forgotton Room with New York Times bestselling authors Beatriz Williams and Lauren Willig. She grew up in London but now lives with her husband and two children near Atlanta, Georgia.