STC214651 Ku Klux Klan members, late 1860s-70s (engraving) (b/w photo) by American School, (19th century); Private Collection; (add.info.: first formed in 1866 during Reconstruction period after Civil War, when Southerners rebelled against domination by Northern Unionists and the black population; officially disbanded in 1869, but continued underground;); The Stapleton Collection; American, out of copyright.