Release: NBER Macrohistory Database
The Last Two Years Of The Series Were Computed By Dividing Farm Value In Given Year By Farm Value In 1926 (Table 505, Agricultural Statistics, 1943). Source: U.S.D.A. Bureau Of Agricultural Economics, "Price Spreads Between The Farmer And The Consumer, " (1936), And Supplement To That Report (1941).
This NBER data series a04183 appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html.
NBER Indicator: a04183
National Bureau of Economic Research, Index of Farm Prices of 58 Foods for United States [A04183USA336NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/A04183USA336NNBR, November 18, 2017.