Series Is Presented Here As Two Variables--(1)--Original Data, 1915-1922 (2)--Original Data, 1919-1968. Source: Employment And Earnings Statistics For The United States, 1909-1960, Bureau Of Labor Statistics Bulletin No.1312 (1961) And 8 Subsequent Issues Through No.1312-5 (1967) For 1919-1967;"Employment And Earnings, " And Monthly Issues For September, 1967-December, 1968.
This NBER data series m08069b appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: m08069b
Release: NBER Macrohistory Database
National Bureau of Economic Research, Index of Aggregate Weekly Payrolls, Production Workers, Total Manufacturing for United States [M08K9BUSM350NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M08K9BUSM350NNBR/, August 28, 2015.