June 19 – Custer Creek train wreck kills at least 47 near Saugus, Montana. A bridge, weakened by a flash flood, collapses under the Milwaukee Road's Olympian plunging the locomotive and seven lead cars into the rain-swollen creek. It remains the worse rail disaster in Montana history.
July 31 – The Pennsylvania Railroad, in its public timetable issued today, boasts that “19% of all passengers are carried on the Pennsylvania Railroad.”
^"Chapter I: Present Conditions". Report of Survey of the Manila Railroad Company and the Preliminary Survey of Railroads for Mindanao (Report). Chicago: De Leuw, Cather & Company. 1951. pp. 1–12.
^"San Fernando Valley Line". Electric Railway Historical Association of Southern California. Retrieved 8 September 2020.
^Manitou & Pike's Peak Cog Railway (2005). "Cog Railway History". Archived from the original on 1 July 2005. Retrieved 2005-06-13.
^Croome, Desmond F.; Jackson, Alan A. (1993). Rails through the Clay: a history of London's Tube railways (2nd ed.). Harrow Weald: Capital Transport. pp. 258–62. ISBN1-85414-151-1.
^Jones, Robert C. (1998). Two Feet to the Quarries. Evergreen Press. p. 93. ISBN0-9667264-0-5.