Thomas J. Noel, also known as "Dr. Colorado", teaches history at the University of Colorado at Denver where he is the director of Public History, Preservation & Colorado Studies, and is a columnist for the Denver Post. He has served as a Denver Landmark Commissioner and chair during the 1970s and 1980s and is a National Register Reviewer for Colorado. He is the author or coauthor of forty-one books on Colorado. As an historian and historic preservation consultant, Cathleen Norman has worked with numerous Front Range communities and historical societies in projects focusing on Colorado's mining and architecture. She is the author of Golden Old and New, a walking tour guide of Golden, Colorado.