453 Greene, Lorenzo, J., _and_ Carter G. Woodson. The Negro wage earner. Washington, Association for the Study of Negro Life and History [c1930] 388 p. diagrs., tables. E185.8.G79 Bibliography: p. [369]-380. 454 Hayes, Laurence J. W. The Negro Federal Government worker; a study of his classification status in the District of Columbia, 1883-1938. Washington, Graduate School, Howard University, 1941. 156 p. diagr., tables. (The Howard University studies in the social sciences, v. 3, no. 1) [E185.8.H38] [TR: H31.H66 vol. 3, no. 1] Thesis (M.A.)—Howard University, 1941. Bibliographical footnotes. 455 Haynes, George E. The Negro at work in New York City; a study in economic progress. New York, 1912. 159 p. diagrs., tables. E185.93.N56H41 Thesis (Ph.D.)—Columbia University, 1912. Published also as Studies in History, Economics and Public Law, edited by the Faculty of Political Science of Columbia University, v. 49, no. 3, whole no. 124. "Select bibliography": p. 154-156. 456 Hiestand, Dale L. Economic growth and employment opportunities for minorities. Foreword by John F. Henning. Introduction by Eli Ginzberg. New York, Columbia University Press, 1964. xx, 127 p. HD4903.5.U58H5 1964 "Another version of this study [is titled] _Economic Growth and the Opportunities of Minorities: an Analysis of Changes in the Employment of Negroes and Women_." Bibliography: p. [125]-127. 457 Huson, Carolyn F., _and_ Michael E. Schiltz. College, color, and employment; racial differentials in postgraduate employment among 1964 graduates of Louisiana colleges. Chicago, National Opinion Research Center, 1966. xx, 124 p. (National Opinion Research Center. Report no. 116) HM261.A1N3 no. 116 "Research ... supported by the Office of Manpower Policy, Evaluation, and Research, U.S. Department of Labor, under grant no. 91-15-66-01." 458 Jackson, Luther P. Free Negro labor and property holding in Virginia, 1830-1860. New York, D. Appleton-Century Co. [1942] xix, 270 p. tables. E185.93.V8J18 At head of title: The American Historical Association. Bibliography: p. 230-238. 459 Jackson, Luther P. Negro office-holders in Virginia, 1865-1895. Norfolk, Va., Guide Quality Press, 1945, c1946. 88 p. port. E185.93.V8J19 460 Jacobson, Julius, _ed._ The Negro and the American labor movement. Garden City, N.Y., Anchor Books, 1968. 430 p. E185.8.J3 Bibliographical references included in "Notes" (p. 401-426). 461 Krislov, Samuel. The Negro in Federal employment: the quest for equal opportunity. Minneapolis, University of Minnesota Press [1967] 157 p. JK723.N4K7 1967 Bibliographical footnotes.