Series Is Presented Here As Two Variables--(1)--Original Data,1937-1965 (2)--Original Data, 1965-1969. Loans Outstanding, Upon Which Data Are Based, Are For Averages Of Four Or Five Wednesdays Per Month. Source: Federal Reserve Board, Data For 1937-1941: Derived From Banking And Monetary Statistics, 1943. Data For 1942-1965: Derived From Federal Reserve Bulletin, Successive Issues.
This NBER data series m14191a appears on the NBER website in Chapter 14 at http://www.nber.org/databases/macrohistory/contents/chapter14.html.
NBER Indicator: m14191a
Release: NBER Macrohistory Database
National Bureau of Economic Research, Net Change in Commercial and Industrial Loans, Weekly Reporting Member Banks, Federal Reserve System for United States [M1491AUSM144NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M1491AUSM144NNBR, May 3, 2016.