Release: NBER Macrohistory Database
Average Weekly Earnings Were Put On A Yearly Basis By Multiplying By 52. The Most Probable Monthly Earnings Were Estimated By Monthly Deviations From 1915 And 1919 Averages And Interpolating The 37 Intervening Months. See Pp. 235 And Following Of The Source. Source: P.H. Douglas, Real Wages In The United States, 1890-1926, Pp. 613-615; The Movement Of Money And Real Earnings In The United States, 1926-1928, P. 10.
This NBER data series m082068 appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: m082068
National Bureau of Economic Research, Relative Index of Real Annual Earnings in All Manufacturing Industries for United States [M08068USM325NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/M08068USM325NNBR, April 23, 2017.