Source: Paul F. Brissender, Census Monograph No. 10, Earnings Of Factory Works, Pp. 64-65.
This NBER data series m08067 appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: m08067
Release: NBER Macrohistory Database
National Bureau of Economic Research, Estimated Per Capita Real Earnings of Wage Earners In Manufacturing Industries for United States [M08067USM325NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M08067USM325NNBR/, September 4, 2015.