Jennifer A. Watts is senior curator for library special projects at The Huntington. Her many books include Nineteen Nineteen and A Strange and Fearful Interest: Death, Mourning, and Memory in the American Civil War. Daniel Lewis is the Dibner Senior Curator for the History of Science and Technology at The Huntington. He is the author of Twelve Trees: The Deep Roots of Our Future and Belonging on an Island: Birds, Extinction, and Evolution in Hawai‘i. Joel A. Klein is the Molina Curator for the History of Medicine and Allied Sciences at The Huntington. Natalie Lawler is assistant curator for library special projects at The Huntington. Bill Nye is an engineer, educator, and author, best known as the host of the Emmy Award–winning PBS show Bill Nye the Science Guy.