The Data Include Male And Female, The Latter Accounting For Less Than Half Of One Percent. Bookkeepers, Stenographers And Office Help Are Not Included. Source: From 1914 To 1929, The Data Come From The U.S.Bureau Of Labor Statistics Bulletin 553, Pp.54 And Following Industrial Commission Of Ohio Until June, 1921, And Thereafter, Department Of Industrial Production Of Ohio.
This NBER data series m08009aa appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: m08009aa
Release: NBER Macrohistory Database
National Bureau of Economic Research, Wage Earners Employed In All Construction Work for Ohio [M08FAAUS000OHM555NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M08FAAUS000OHM555NNBR/, June 29, 2015.