Series Is Presented Here As Two Variables--(1)--Original Data, 1920-1948 (2)--Original Data, 1934-1959. Source: National Industrial Conference Board, For 1920-1933 Data:"Wages, Hours, And Employment In The United States, 1914-1936", Nicb Study No.229, 1936; For 1934-June 1943 Data: Table Furnished By Nicb; For July 1943-1948 Data: Nicb Management Record.
This NBER data series m08207a appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: m08207a
Release: NBER Macrohistory Database
National Bureau of Economic Research, Average Hourly Earnings, Automobile Manufacturing for United States [M0807AUSM259NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0807AUSM259NNBR/, October 9, 2015.