Every year millions of museum visitors marvel at the skeletons of dinosaurs and other prehistoric creatures discovered by John Bell Hatcher. The life of the "King of Collectors" is every bit as fascinating as the mighty bones and fossils he unearthed. Hatcher helped discover and mount much of the Carnegie Museum's world famous, 150 million-year-old skeleton of Diplodocus, a slender-necked, long-tailed, plant-eater whose skeleton has...