'Great Northern Semaphore', Volume 5, Number 8, August 1928, 32 pages. A monthly publication of the Great Northern Railway Company, Saint Paul, Minnesota, it was edited by Edward F. Flynn. Articles include: The Pacific Salmon A World Food, Brewster Bridge over the Columbia River, Great Northern Storekeepers Meet, Warning to Switchmen and Their Families, Lewistown Montana Has Silver Jubilee, A Real Booster for His Community, Great Northern Surgeons Meet, Business Getters, Children?s Health Page, Club Activities, Division News, Editorial, Meritorious Mention, Safety First, Veteran?s Corner.

'Great Northern Semaphore', Volume 2, Number 12, December 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: Winter in the Rockies - Battlement Mountain from near Gary (Montana), Washed Gravel Ballast, Under the Big Top, Spokane Railroad Postoffice, Power Plants Along the Great Northern, Cross Crossings Cautiously, Trimmed for the 4th at Fergus Falls, More About Service, Great Northern Gulliver, More about Chicago Union Station, Scobey Work Advancing. Children?s Health Page, Club Activities, Division News, Editorial, Employes? Homes, Fashions, Honor Roll, House Plans, Kiddies? Picture Page, Meritorious Mention, Portrait Gallery, Pullman Paragraphs, Puzzles, Reminiscences, Safety, Women?s Page, Veterans? Corner, What They Say of Our Railroad.

'Great Northern Semaphore', Volume 3, Number 12, December 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: Great Northern to Build from Richey to Circle Montana, Our Directors Albert C. Loring, The Legend of Prophet?s Cut, Astonishing Records Being Made, Queen Marie on Great Northern, Charles M. Russell Passes On, Packing Plant Celebrates, Our St. Louis Office, Children?s Health Page, Club Activities, Division News, Editorial, Fashions, Honor Roll, House Plans, Kiddies? Picture Page, Meritorious Mention, Safety First, Veteran?s Corner, Women?s Page.

'Great Northern Semaphore', Volume 4, Number 12, December 1927, 44 pages. A monthly publication of the Great Northern Railway Company, Saint Paul, Minnesota, it was edited by Edward F. Flynn. Articles include: The New Klamath Basin, Neat As a Pin, What Might Have Been, Attracting Worldwide Attention, Comments on Great Northern Valuation, The Tale of the Tie, The Honeymoon Express, The New Newport Bridge, Children?s Health Page, Club Activities, Division News, Editorial, Employes? Homes, Kiddies? Group, Meritorious Mention, Safety First, Veteran?s Corner, Women?s Page.

'Great Northern Semaphore', Volume 5, Number 12, December 1928, 32 pages. A monthly publication of the Great Northern Railway Company, Saint Paul, Minnesota, it was edited by Edward F. Flynn. Articles include: The Sheep Industry in Montana, What Improved Transportation Has Done for the Lumber Industry, In the Klamath Country of Oregon, Making Carbon Black, How Strangers Became Friends, Business Getters, Children?s Health Page, Club Activities, Division News, Editorial, Honor Roll, Meritorious Mention, Veteran?s Corner.

'Great Northern Semaphore', Volume 2, Number 2, February 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: Raw Silk Shipments, An Engineer's Great Work, Kiwanis Learns About Club, Build Dozer in Ten Days, ?Pittsburgh Plus?, Station Agent Wins Promotion, Chess Tournament Proposed. Children?s Page, Club Activities, Division News, Editorial, Fashions, Honor Roll, Puzzles, Safety, Sports, With Our Poets, Women?s Department

'Great Northern Semaphore', Volume 3, Number 2, February 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: Lake Chelan Power Development, Hillyard Achievement, Director General of Railroads Resigns, Silk Train Performances, Taxation and Rates, Hands Across the Border, Gasoline Cars, Income Statement for 1925, Peerless is Growing, A Record to be Proud Of, Mississippi Street Commissary, Business Getters, Children?s Health Page, Club Activities, Current Events, Division News, Editorial, Employes? Homes, Fashions, Honor Roll, House Plans, Kiddies? Picture Page, Pullman Paragraphs, Reminiscences, Safety First, Veteran?s Corner, What They Say of Our Railroad, Women?s Page.

'Great Northern Semaphore', Volume 4, Number 2, February 1927, 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, Income Statement, Washington Wins High Honor, Our Directors Joseph Chapman, Montana Honored, Periodic Medical Examinations, A Clever Young Draftsman, New Oil-Electric Locomotive, Model of William Crooks, Business Getters, Children?s Health Page, Club Activities, Division News, Editorial, Fashions, House Plans, Honor Roll, Kiddies? Picture Page, Meritorious Mention, Veteran?s Corner, What They Say, Women?s Page.

'Great Northern Semaphore', Volume 5, Number 2, February 1928, 44 pages. A monthly publication of the Great Northern Railway Company, Saint Paul, Minnesota, it was edited by Edward F. Flynn. Articles include: Blackfeet Indians at Lincoln?s Tomb, The Purchasing Department, New Bellingham Passenger Station, Our Telephone Service, ?The Night Flyer?, Queer Things about Quarries, What Makes a Railroad?, Recollections of Mountain Surveys, History of the Air Brake, Children?s Health Page, Club Activities, Division News, Editorial, Honor Roll, Kiddies? Group, Meritorious Mention, Safety First, Veterans? Corner, Women?s Page.

'Great Northern Semaphore', Volume 2, Number 1, January 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: President?s Announcement, Great Northern Efficiency, Income Statement for 1924, Second Annual Frolic, The Railway Nerve System, Along the Kootenai, Bugle Blasts-American Legion, A Voyage to the Orient, Heroes of Every Day, Trains or Busses, The Railroad Beatitudes, Superior Supervisors? Meeting. Club Activities, Division News, Editorial, Fashions, Honor Roll, Puzzles, Safety, Sports, With Our Poets.