Seven year-old Alice Liddell, photographed by Charles Dodgson, better known as Lewis Carroll, the author of Alice's Adventures in Wonderland. Lewis Carroll/Metropolitan Museum of Art/AP hide caption

itoggle caption Lewis Carroll/Metropolitan Museum of Art/AP

Over the course of her long career, Lucille Clifton received Pulitzer Prize nominations and a National Book Award. In 2007, she received the Ruth Lilly Poetry Prize from the Poetry Foundation. She is pictured above in 2000. Mark Lennihan/AP hide caption

itoggle caption Mark Lennihan/AP