Series is Presented Here As Two Variables--(1)--Original Data, 1914-1920 (2)--Original Data, 1919-1969. The Series Were"Revised On The Basis Of The 1957 Standard Industrial Classification". Source: Employment And Earnings Statistics For The United States, 1909- 60 For 1919-58, And"Employment And Earnings Statistics For The United States, 1909-66" For 1959-67 (Bureau Of Labor Statistics Bulletin, Nos.1312 And 1312-5); Then"Employment And Earnings" From September 1967 Until March 1969. The Data Were First Published In The"Monthly Report On The Labor Force" (Also A Press Release On The Employment Estimation).
This NBER data series m08010b appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: m08010b
Release: NBER Macrohistory Database
National Bureau of Economic Research, Production Worker Employment, Manufacturing, Total for United States [M081FBUSM175NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M081FBUSM175NNBR, February 9, 2016.