Release: NBER Macrohistory Database
Data For July 1930-1932 Were Computed By NBER, And The Monthly Figures For July 1924-1930 Were Checked Against Nicb Quarterly Figures. Source: Computed By The National Industrial Conference Board From Data In Icc "Wage Statistics."
This NBER data series q08037 appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: q08037
National Bureau of Economic Research, Average Hours of Work Per Week, Class I Railroad Employees, Unskilled Labor for United States [Q08037USQ065NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/Q08037USQ065NNBR, September 27, 2016.