'Great Northern Semaphore', Volume 5, Number 3, March 1928, 44 pages. A monthly publication of the Great Northern Railway Company, Saint Paul, Minnesota, it was edited by Edward F. Flynn. Articles include: Big Trees and Plenty, A Remarkable Group, Moscow Idaho, ?The Empire Builder?, The ?Helen Vinmont? and Her Skipper, The Puget Sound Navy Yard at Bremerton, The Park Department Speaks Up, Business Getters, Children?s Health Page, Club Activities, Division News, Editorial, Kiddies? Group, Meritorious Mention, Safety First, Veteran?s Corner, Women?s Page.

'Great Northern Semaphore', Volume 2, Number 5, May 1925, 36 pages. A monthly publication of the Great Northern Railway Company, Saint Paul, Minnesota, it was edited by W.N.S. Ivins. Articles include: Montana Sugar Beet Industry, The Examining Board, More Through Traffic Imperative, New Locomotives, Famous Indian Sculptor, Biographies Great Northern G. A. R. Veterans, The Vanishing Army, Moving Shops to Devils Lake, No Gold Mine, Kind Words From Cuba, Efficiency of the ?Booster?, Oriental Limited Dining Cars, "Grinnell Glacier?, Pullman Paragraphs, Our Telegraph System, Experiment in Car Painting. Children?s Health Page, Club Activities, Division News, Editorial, Fashions, Puzzles, Reminiscences, Safety First, Sports, Women?s Department, Veterans? Corner, Honor Roll, With Our Poets, Kiddies? Picture Page.

'Great Northern Semaphore', Volume 3, Number 5, May 1926, 44 pages. A monthly publication of the Great Northern Railway Company, Saint Paul, Minnesota, it was edited by W.N.S. Ivins. Articles include: King Street Station Seattle, Seattle, Dude Ranch de Luxe, Repairing a Box Car, Relation of Highway Transportation to the Railway, Be a Railroad Booster, Not News to Us, Additional Electrification Planned, Engine 1375, Annual Tulip Festival at Bellingham, Great Northern Enters Canadian Rockies, Oriental?s New Library, In True Great Northern Fashion, Business Getters, Children?s Health Page, Club Activities, Current Events, Division News, Editorial, Employes? Homes, Fashions, House Plans, Kiddies? Picture Page, Meritorious Mention, Safety First, Veteran?s Corner, Women?s Page.

'Great Northern Semaphore', Volume 4, Number 5, May 1927, 48 pages. A monthly publication of the Great Northern Railway Company, Saint Paul, Minnesota, it was edited by Edward F. Flynn. Articles include: Prince of Wales Hotel in Canadian Rockies, Seventieth Anniversary, Great Northern Greenhouses at Monroe, Geraghty the Toymaker, Railway Radio, How Has the Great Northern Helped, First Woman in Great Northern Employ, Old Custom House at Oroville, First Break Through in the New Cascade Tunnel, Along the Line, Children?s Health Page, Club Activities, Division News, Editorial, Employes? Homes, Honor Roll, House Plans, Kiddies? Picture Page, Safety First, Veteran?s Corner, What They Say, Women?s Page.

'Great Northern Semaphore', Volume 5, Number 5, May 1928, 44 pages. A monthly publication of the Great Northern Railway Company, Saint Paul, Minnesota, it was edited by Edward F. Flynn. Articles include: Here and There Along the Line, Where Copper is King, Uncle Sam Shipper, Sidney a Sugar Beet Center, A Buxton Booster in 1884, ?U Need Rugby Needs U?, Some More Old Pictures and a New One, Whitefish Vegetable Products Becoming Famous, Children?s Health Page, Club Activities, Division News, Editorial, Kiddies? Group, Safety First, Veteran?s Corner, Women?s Page.

'Great Northern Semaphore', Volume 2, Number 11, November 1925, 44 pages. A monthly publication of the Great Northern Railway Company, Saint Paul, Minnesota, it was edited by W.N.S. Ivins. Articles include: Another World's Record, The Scobey Extension, Chinese Students Travel, A Great Northern Hollywood, Meet Mayor Gosswiller, Attractive Surroundings, Our Helena Office, Meet His Excellency the Chef, At the "M Lazy V?. Children?s Health Page, Club Activities, Division News, Editorial, Fashions, Puzzles, Reminiscences, Safety, Sports, Women?s Page, Veterans? Corner, Honor Roll, What They Say of Our Railroad, House Plans, Pullman Paragraphs, Kiddies? Picture Page.

'Great Northern Semaphore', Volume 3, Number 11, November 1926, 49 pages. A monthly publication of the Great Northern Railway Company, Saint Paul, Minnesota, it was edited by W.N.S. Ivins. Articles include: Shelby Montana New Light Signals, Block Signals Completed, Our Directors Edward Eugene Loomis, Heroes of the Fernie Fire, Great Northern?s Dependable Service, Two Ways of Running a Railway, False Witness Confounded, Our Pittsburgh Office, A Chicken Pie Expert, Business Getters, Children?s Health Page, Club Activities, Division News, Editorial, Employes? Homes, Fashions, Honor Roll, House Plans, Kiddies? Picture Page, Meritorious Mention, Safety First, Veteran?s Corner, What They Say of Our Railroad, Women?s Page.

'Great Northern Semaphore', Volume 4, Number 11, November 1927, 44 pages. A monthly publication of the Great Northern Railway Company, Saint Paul, Minnesota, it was edited by Edward F. Flynn. Articles include: Great Northern at Fair of the Iron Horse, The Mount Baker Country, The Successful Section Foreman, A Treasure Trove of Yesterday, Old Fort Colville, Soldiers? Memorial at Williston, First Train to Devils Lake, My Trip to America, A Tribute to Father Malo, Children?s Health Page, Club Activities, Division News, Editorial, Honor Roll, Kiddies? Group, Our Business Getters, Safety First, Veteran?s Corner, Women?s Page.

'Great Northern Semaphore', Volume 5, Number 11, November 1928, 32 pages. A monthly publication of the Great Northern Railway Company, Saint Paul, Minnesota, it was edited by Edward F. Flynn. Articles include: Guardians of the Valley, There is Gas in Montana, New Chumstick Route, A Pictographic Gallery, Half a Century of Service, New Great Northern Map, Ticket Agents Hold Convention, Children?s Health Page, Club Activities, Division News, Editorial, Honor Roll, Meritorious Mention, Safety First, Veteran?s Corner.

'Great Northern Semaphore', Volume 2, Number 10, October 1925, 44 pages. A monthly publication of the Great Northern Railway Company, Saint Paul, Minnesota, it was edited by W.N.S. Ivins. Articles include: Portrait of James J. Hill, Apple Shipments and How Handled, Introducing Klamath Falls, Our Philadelphia Office, English. Railway Celebration, Tourist Manufacturers Meet, Dale Street Greenhouse Dedication, Box Car Comparison, Praise by "Sousa of France?, A Model Camp, Great Northern Icing Company. Children?s Health Page, Club Activities, Division News, Editorial, Employes? Homes, Fashions, House Plans, Pullman Paragraphs, Puzzles, Reminiscences, Safety, Women?s Page, Veterans? Corner, What They Say of Our Railroad, Kiddies? Picture Page.