Series Is Presented Here As Two Variables--(1)--Original Data, 1939-1945 (2)--Seasonally Adjusted Data, 1946-1968. Quarterly Figures Can Be Multiplied By 4 To Derive Totals At Annual Rates. Source: National Income, 1954 Edition, A Supplement To The Survey Of Current Business
This NBER data series q08278a appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: q08278a
Release: NBER Macrohistory Database
National Bureau of Economic Research, Business and Professional Income for United States [Q0878AUSQ027NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/Q0878AUSQ027NNBR/, July 7, 2015.