Figures For 1860-1870 Are For No. 2 Mixed Corn, Weekly And Semi-Monthly Averages; Figures For 1871-1873 Include No. 2 Contract Corn, Average Of Semi-Monthly High And Low Quotations; Figures For 1874-1940 Include No. 2 Contract Corn, Average Of Monthly High And Low Quotations. Figures For September-December, 1943, Are Derived From A Straight Line Interpolation Between August, 1943 And January, 1944. The Figure For June, 1946 Was Derived From A Straight Line Interpolation Between May And July, 1946. Figures For January-April And June-October, 1944, January- February And November, 1945, And January-April, 1946, Were Interpolated By Use Of Ratio To Trend Line Deviations Method. The Interpolating Figures Were Taken From The Series "Corn No. 2, Yellow, Chicago, Weighted" Source: H.A. Wallace And E.N. Bressman, Corn And Corn Growing, Pp.341- 343, 3Rd Edition, 1928, For 1860-1870 Data; Chicago Board Of Trade, Annual Report. United States Department Of Agriculture, Bureau Of Agricultural Economics, "Feed Statistics."
This NBER data series m04005 appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html.
NBER Indicator: m04005
Release: NBER Macrohistory Database
National Bureau of Economic Research, Wholesale Price of Corn for Chicago, IL [M04005US16980M280NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M04005US16980M280NNBR, February 11, 2016.
FRED BlogFinding old inflation data