Series Is Presented Here As Two Variables--(1)--Original Data, 1919-1923 (2)--Original Data, 1923-1942. Source: Bureau Of Labor Statistics, For 1923-1930 Data: Bulletin No. 610, Revised Indexes Of Factory Employment And Payrolls, 1919-1933; For 1931-1934 Data: Release Of September 1938, Revised Indexes Of Factory Employment And Payrolls; For 1935-1939: Release Of May 1940 Of The Same
This NBER data series m08236b appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: m08236b
Release: NBER Macrohistory Database
National Bureau of Economic Research, Index of Factory Employment, Blast Furnaces, Steel Works, and Rolling Mills for United States [M0836BUSM331NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0836BUSM331NNBR/, July 6, 2015.