This Series Excludes The Military. Source: Simon Kuznets, National Income And Its Composition, 1919-38, Pp. 314 And 814, 1941.
This NBER data series a08172 appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: a08172
Release: NBER Macrohistory Database
National Bureau of Economic Research, Nonagricultural Employment for United States [A08172USA175NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/A08172USA175NNBR/, July 29, 2015.