Source: Bureau Of Labor Statistics, For 1951-May 1963 Data: "Employment And Earnings In The United States, 1909-1962", Bulletin No. 1312-1, 1963; Also See Bulletins No. 1312-2, 1964 Through 1312-6, 1968 For Later Revisions; For 1963-1968 Data: "Factory Labor Turnover", Monthly Releases.
This NBER data series m08323 appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: m08323
Release: NBER Macrohistory Database
National Bureau of Economic Research, Labor Turnover, Rehiring Rate, Manufacturing for United States [M08323USM497NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M08323USM497NNBR/, June 2, 2015.