Source: Bls Bulletin Number 1312, Employment & Earnings Statistics (Issued 1961), For 1939:58; Bull No. 1312-1 (1963) For 1959-May 1963; Monthly Public Employment & Earnings Thereafter.
This NBER data series m08146c appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: m08146c
Release: NBER Macrohistory Database
National Bureau of Economic Research, Index of Factory Employment, Total Durable Goods for United States [M0846CUSM331SNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0846CUSM331SNBR/, July 3, 2015.