African American Construction Workers; African Americans; Child Labor; Rivets And Riveting; Young Men's Christian Association (Ymca)
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@ Schomburg Center for Research in Black Culture, Photographs and Prints Division. The New York Public Library
Aerial Views; Albumen Prints; Civil War; Civil War, 1861 1865; Engineering & Construction; History; Jericho Mills; Military Personnel; North Anna River (Va.); Pontoon Bridges; Rivers; Soldiers; Stereographs; Transportation; Union; United States; Virginia; Wilderness, Battle Of The, Va., 1864
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@ Library of Congress