Minneapolis & St. Louis side-door caboose By Angela Cotey | August 19, 2016 | Last updated on August 7, 2025 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates The conductor of Minneapolis & St. Louis’ Story City, Iowa, mixed train looks out from the old hack’s side door at McCallsburg, Iowa, in the 1940s. William F. Armstrong photo