URL: https://digitalcollections.hoover.org/objects/37230 Collection Structure Poster collection > When you think the going is tough - remember Colin Kelly. "Keep 'em rolling" to "Keep 'em flying." The railroads are the first line of defense. Item Title When you think the going is tough - remember Colin Kelly. "Keep 'em rolling" to "Keep 'em flying." The railroads are the first line of defense. Collection Title Poster collection Issuing Body Union Pacific Railroad Company Date Created 1941/1945? Description Drawing of a fighter engagement above a burning ship. Subject(s) Social aspects Transportation Freight Railroads and state World War, 1939-1945 United States Air pilots, Military Supplies and stores Labor productivity Heroes Railroads Employees Language(s) English Country of Origin United States Country of Origin United States Dimensions Overall: 23 x 16 in. (58.4 x 40.6 cm) Format Poster Medium political posters Color color Color color Hoover ID Poster US 4095 Record Number XX343.27606 Collection Guide https://oac.cdlib.org/findaid/ark:/13030/kt829015km Rights This work may be protected by copyright laws and is provided for educational and research purposes only. Any infringing use may be subject to disciplinary action and/or civil or criminal liability as provided by law. If you believe you are the rights holder and object to Hoover's use of this work, please contact the Hoover Institution Library & Archives.