Events January events January 1 - The Lichfield rail crash in England kills 20 people. January 18 - The Harvey Girls, a movie starring Judy Garland and Ray Bolger and set in a Harvey House Hotel, makes its American debut. The movie will win a Best Song Oscar for Johnny Mercer’s “On the Atchison, Topeka and the Santa Fe”. January 21 - The Hull Electric Railway in Ottawa is fined $50 for violating a local law against moving freight on the city streets between midnight and 5:00 AM when it was delivering loads to oil companies along Laurier Avenue. February events February 1 - Henry G. Ivatt is promoted to Chief Mechanical Engineer of the London, Midland and Scottish Railway, succeeding Charles Fairburn. February 20 - Pullman Standard delivers the first passenger car built after World War II. February 25 - The worst-ever train crash in Japan kills 184 people. March events March 29 - The north end of Ottawa's Interprovincial Bridge is destroyed by fire, severing Château Laurier from Hull Electric Railway passenger service. April events April 5 - The Temiskaming and Northern Ontario Railway Act is amended by the Ontario government, to change the name of the Temiskaming and Northern Ontario Railway to the Ontario Northland Railway. April 25 - Naperville train disaster in Naperville, Illinois, United States: Chicago, Burlington and Quincy Railroad's Advance Flyer, stopped in the station, is rammed by the railroad's Exposition Flyer. 45 killed, more than 100 injured. May events May 17 - President Harry Truman seizes control of the railroads to prevent a nationwide strike. May 30 - After a short strike earlier in the month, Hudson and Manhattan Railroad trainmen go on strike again when the Pennsylvania Railroad (which owned the H&M at this time) management decides that the recent PRR pay increase does not apply to H&M employees. June events June 20 - First use of a Public Address system on a passenger train for station announcements. The system was installed in a New York City Subway car. July events July - General Motors Electro-Motive Division introduces the EMD F2. July 1 - Opening of replacement Hawkesbury River Railway Bridge north of Sydney, Australia. August events August 10 - The Pere Marquette Railway inaugurates the Pere Marquette passenger train between Detroit and Grand Rapids, Michigan, the first new postwar streamliner. August 14 - Fréjus Rail Tunnel reopened as reconstructed after wartime