History of Labour in the United States: Introduction, by J.R. Commons. Colonial and federal beginnings (to 1827), by D.J. Saposs. Citizenship (1827-1833), by Helen L. Sumner. Trade unionism (1833-1839), by E.B. Mittelman. Humanitarianism (1840-1860), by H.E. Hoagland

by John Rogers Commons, David Joseph Saposs, Helen Laura Sumner, Henry Elmer Hoagland, John Bertram Andrews, Edward Becker Mittelman, Selig Perlman