Series Is Presented Here As Two Variables--(1)--Original Data, 1919-1942 (2)--Original Data, 1947-1954. Source: For Data Through 1934, Bureau Of Labor Statistics Mimeographed Release, September, 1938, Pp.49, 50, 31, 32, 55; For 1935-39 Data, Bureau Of Labor Statistics Mimeographed Release, May, 1940; Thereafter, "Employment And Payrolls" And Monthly Labor Review.
This NBER data series m08070a appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: m08070a
Release: NBER Macrohistory Database
National Bureau of Economic Research, Index of Factory Payrolls, Food Products for United States [M0870AUSM331NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0870AUSM331NNBR/, July 28, 2015.