Scott Lothes is the president and executive director of the Center for Railroad Photography & Art and editor of its journal, Railroad Heritage. He is the author or coauthor of eight books, and he has written and photographed dozens of articles that have appeared in magazines including Trains, Classic Trains, Railfan & Railroad, Railroads Illustrated, and Railroad History, as well as the Oregonian newspaper. He lives in Madison, WisconsinJim Shaughnessy (1933-2018) was a highly accomplished railroad photographer his work appeared in numerous books and magazine articles. He received the Railway & Locomotive Historical Society's lifetime photography award in 1987. He received an engineering degree from Rensselaer Polytechnic Institute, became a licensed professional engineer, and taught civil engineering courses. Karl Zimmermann is a prolific author and photographer who frequently covers railway subjects. He has written 26 books, most illustrated with his own photographs. His stories have appeared in Travel & Leisure, The Los Angeles Times, Gourmet, Trains, Classic Trains, Americana, Passenger Train Journal, Cruise Travel, Bon Appetit, Locomotive & Railway Preservation, Railroad & Railfan, Amtrak Express, The Writer, Chronos, Physicians' Travel & Meeting Guide, Outdoor Life, and Western Outdoors. He holds a B.A. from Princeton and an M.A. in English from New York University, and he had a 25-year career as teacher and administrator in independent schools. He lives in Oradell, New Jersey.John Gruber (1936-2018) was a railroad historian and photographer, and was a founder and first president (1997-2013) of the Center for Railroad Photography & Art. He edited its journal, Railroad Heritage, from 2000 to 2012. As a freelance railroad photographer, he received awards from the Railway & Locomotive Historical Society in 1994 for lifetime achievement in photography, in 2010 for an article, and in 2015 for a book. He was the author, coauthor, or editor of eight books, and he edited Vintage Rails magazine from 1995 to 1999.Don Hofsommer is a professor emeritus of history at St. Cloud State University and a highly accomplished historian, author, and photographer. He has written more than a dozen books about railroad history. In 1964, he spent a summer living and studying in Alamosa, Colorado, and he extensively photographed the Denver & Rio Grande Western Railroad's narrow gauge lines during that time. He lives in Mankato, Minnesota. Richard Steinheimer (1929-2011) was a master of American railroad photography. His work has been published in Trains, Railfan, Locomotive and Railway Preservation, and Vintage Rail, and more than seventy books.Victor Hand has traveled the world photographing railways for the past fifty-five years. His work has been published widely in railway periodicals and books.