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There is a page named "File:Fvhayden.jpg" on Wikipedia
DescriptionFvhayden.jpg English: Hayden's Civil War photo Date 1860 Source Photo retrieved by Gwillhickers Leidy's Fossil Collectors. The Academy of Natural...(302 × 360 (18 KB)) - 02:17, 13 July 2024
DescriptionFVHaydenAtWork1870-Jackson.jpg English: Ferdinand V. Hayden working during 1870 Geological Survey of the Territories Date 1870 Source Downloaded...(3,230 × 2,863 (1,018 KB)) - 20:30, 17 August 2024
