Series Is Presented Here As Two Variables--(1)--Original Data, 1921-1943 (2)--Original Data, 1939-1956. This Series Is Roughly Comparable To The Nicb Series In Industry Coverage. "All Wage-Earners" Include "Non-Supervisory Employees." Source: Bureau Of Labor Statistics: For 1939-1952, "Employment, Hours, And Earnings, " Transport And Public Utilities Division, Transportation Suddivision, Interstate Railroad Group, Class I Railroads, February 1953 And May 1955 Issues Numbered Ls53-2514; For 1953-1956, June 1956 Release, Monthly Labor Review, And"Employment And Earnings."
This NBER data series m08034b appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: m08034b
Release: NBER Macrohistory Database
National Bureau of Economic Research, Average Hours of Work Per Week, Class I Railroad Employees, All Wage-Earners for United States [M08J4BUSM065NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M08J4BUSM065NNBR/, July 30, 2015.