Series Is Presented Here As Two Variables--(1)--Seasonally Adjusted Data, 1929-1948 (2)--Seasonally Adjusted Data, 1948-1967. The Seasonally Adjusted Data At Annual Rates Were Derived By Deducting Farm Wages From Wage And Salary Disbursements In Community Producing Industries, After Converting Monthly Farm Wages To Figures Representing "Annual Rates" (Original Times 12). Source: Business Cycle Developments, August 1965 And Following Issues.
This NBER data series m08294b appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: m08294b
Release: NBER Macrohistory Database
National Bureau of Economic Research, Labor Income In Mining, Manufacturing, and Construction for United States [M0894BUSM027SNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0894BUSM027SNBR/, August 3, 2015.