Series Is Presented Here As Two Variables--(1)--Original Data, 1929-1946 (2)--Seasonally Adjusted Data, 1946-1966. Data Are Monthly Totals At Annual Rates. Source: Survey Of Current Business, Supplement: National Income, 1954 Edition.
This NBER data series m08279a appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: m08279a
Release: NBER Macrohistory Database
National Bureau of Economic Research, Dividends and Personal Interest Income for United States [M0879AUSM027NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0879AUSM027NNBR/, August 4, 2015.