| Unidentified photographer Philadelphia Grays at Niagara Falls 1859, 11 June Ambrotype, whole plate Internet - Original source ill-defined Posted by R.J. Ferry to the Facebook "The American Civil War Collectors" Group. LL/67560 This image was offered at the DC Photo show in 2015 by the Virginia dealer and photo historian Cliff Krainik. (Wes Cowan, Facebook, Victorian Images group, 10 June 2016).
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