Introduction: "Something in the 'atmosphere' of America" -- pt. 1. Longshoremen -- The logic and limits of solidarity, 1850s-1920s -- New York: "They... helped to create themselves out of what they found around them" -- Waterfront unionism and "race solidarity": from the Crescent City to the City of Angels -- pt. 2. Steelworkers -- Ethnicity and race in steel's nonunion era -- "Regardless of creed, color, or nationality": steelworkers and civil rights (I) -- "We are determined to secure justice now": steelworkers and civil rights (II) -- "The steel was hot, the jobs were dirty, and it was war": class, race, and working-class agency in Youngstown -- Epilogue: "Other energies, other dreams": toward a new labor movement.