Release: NBER Macrohistory Database
Source: Simon Kuznets, National Income And Its Composition, 1919-1938, Volume Ii, 1941, Worksheets For Table Q2, P.551.
This NBER data series a08188 appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: a08188
National Bureau of Economic Research, Salaries in Mining for United States [A08188USA144NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/A08188USA144NNBR, February 18, 2018.