'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.

'Great Northern Semaphore', Volume 3, Number 1, January 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: Ring Out the Old Ring in the New, A Holiday Greeting, GN Always a Grain Carrier, Sheep-Farmers Improve Herd, New Cascade Tunnel, The Prides of Dan McCoy, Great Northerners Learn to Ride, A Larger Anvil Chorus, Younger Railway Men Meet, Chicago Family Meeting-Traffic Men, Business Getters Children?s Health Page, Club Activities, Division News, Editorial, Employes? Homes, Fashions, Honor Roll, House Plans, Kiddies? Picture Page, Pullman Paragraphs, Veterans? Corner, Women?s Page

'Great Northern Semaphore', Volume 4, Number 1, January 1927, 44 pages. A monthly publication of the Great Northern Railway Company, Saint Paul, Minnesota, it was edited by Edward F. Flynn. Articles include: Master Farmers Get Medals, Second Annual Club Tour-Boys? and Girls?, The Great Northern Goat, Advertising Apple Week, Our Directors Albert L. Ordean, History of the H.F. Alexander, Great Northern Band, Two Remarkable Passes, Yesteryear in Rotogravure, Remote Switch Control, Children?s Health Page, Club Activities, Division News, Editorial, Employes? Homes, Fashions, Kiddies? Picture Page, Meritorious Mention, Safety First, Veteran?s Corner, Women?s Page.

'Great Northern Semaphore', Volume 5, Number 1, January 1928, 44 pages. A monthly publication of the Great Northern Railway Company, Saint Paul, Minnesota, it was edited by Edward F. Flynn. Articles include: The Unseen Service, Horizontal Hotels, Benefits of Adequate Transportation, Building Locomotives, Last Aid to the Injured, Recollections of Mountain Surveys, Railway Morale, Moses Lake, History of the Airbrake, Children?s Health Page, Club Activities, Division News, Editorial, Kiddies? Group, Meritorious Mention, Veteran?s Corner, Women?s Page.

'Great Northern Semaphore', Volume 2, Number 7, July 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: Electrify Cascade Climb, Directors on Trip West, Venerable Station Master, Opening St. Paul Studio WCCO, Wenatchee's 6th Apple Blossom Festival, Real Railroad Family, The Traveler?s Friend, The Co-operative Spirit, Bus Lines Acquired, Oriental Has Birthday, Columbia Falls on the Job, Oregon Trunk Extension, Storekeepers Meet, Mr. Stevens Writes Us, Sugar Beet Industry at Williston, N. D. Children?s Health Page, Club Activities, Division News, Editorial, Fashions, Puzzles, Reminiscences, Safety First, Sports, Women?s Page, Veterans? Corner, Honor Roll, What?s in a Name, Pullman Paragraphs Kiddies? Picture Page.