Richard M. Nixon and Elvis Presley at the White House. Original public domain image from Flickr https://www.rawpixel.com/image/8765687/photo-image-vintage-handshake-menFree Image from public domain licenseNelson Atkins Museum Bloch Building in Kansas City, Missouri. Original image from Carol M. Highsmith’s America… https://www.rawpixel.com/image/3093045/free-photo-image-green-building-architectureFree Image from public domain licenseNelson Atkins Art Museum in Kansas City, Missouri. Original image from Carol M. Highsmith’s America, Library of… https://www.rawpixel.com/image/3094239/free-photo-image-lawn-grass-artFree Image from public domain licenseNelson Atkins Museum Bloch Building in Kansas City, Missouri. Original image from Carol M. Highsmith’s America… https://www.rawpixel.com/image/3094190/free-photo-image-building-landscape-museum-city-architectureFree Image from public domain licensefern-like leaf frond; medium blue ground, light blue leaf frond silhouette. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7656911/photo-image-flower-light-leafFree Image from public domain licenseManuscript Leaf with the Martyrdom of Saint Peter Martyr in an Initial P, from a Gradual, South Italian (ca. 1270–80) https://www.rawpixel.com/image/9185643/image-easter-vintage-illuminated-manuscriptFree Image from public domain licenseManuscript Leaf with Saint Christopher Bearing Christ, German or Swiss, early 14th century https://www.rawpixel.com/image/9185134/image-medieval-illuminated-manuscripts-saint-christopherFree Image from public domain licenseMen-of-War and other Shipping on the Thames (most probably at Deptford) https://www.rawpixel.com/image/9206271/image-watercolors-vintage-public-domainFree Image from public domain licensePolypodium vulgare, British by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14265948/polypodium-vulgare-british-anna-atkins-and-anne-dixonFree Image from public domain licenseInfrared view of the Nelson Atkins Art Museum in Kansas City, Missouri. Original image from Carol M. Highsmith’s… https://www.rawpixel.com/image/3092559/free-photo-image-america-carol-highsmithFree Image from public domain licenseAsplenium ruta muraria, British by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14258249/asplenium-ruta-muraria-british-anna-atkins-and-anne-dixonFree Image from public domain licenseCystopteris fragilis, British by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14256141/cystopteris-fragilis-british-anna-atkins-and-anne-dixonFree Image from public domain licenseCyanotypes of British and Foreign Ferns by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14255702/cyanotypes-british-and-foreign-ferns-anna-atkins-and-anne-dixonFree Image from public domain licenseAsplenium trichomanes, British by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14257865/asplenium-trichomanes-british-anna-atkins-and-anne-dixonFree Image from public domain licenseAsplenium praemorsum, Jamaica by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14256852/asplenium-praemorsum-jamaica-anna-atkins-and-anne-dixonFree Image from public domain licenseDavallia aeuleata, Jamaica by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14257962/davallia-aeuleata-jamaica-anna-atkins-and-anne-dixonFree Image from public domain licenseAsplenium septentrionale, British by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14250344/asplenium-septentrionale-british-anna-atkins-and-anne-dixonFree Image from public domain licenseOnoclea sensibilis, New Jersey by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14256619/onoclea-sensibilis-new-jersey-anna-atkins-and-anne-dixonFree Image from public domain licenseAdiantum serrulatum, Jamaica by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14256552/adiantum-serrulatum-jamaica-anna-atkins-and-anne-dixonFree Image from public domain licenseAllosorus crispus, British by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14255683/allosorus-crispus-british-anna-atkins-and-anne-dixonFree Image from public domain licenseAspidium denticulatum, Jamaica by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14256522/aspidium-denticulatum-jamaica-anna-atkins-and-anne-dixonFree Image from public domain licenseWoodwardia virginica, America by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14258152/woodwardia-virginica-america-anna-atkins-and-anne-dixonFree Image from public domain licenseAdiantum capillus veneris, British by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14250101/adiantum-capillus-veneris-british-anna-atkins-and-anne-dixonFree Image from public domain licenseHymenophyllum sericeum, Jamaica by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14256543/hymenophyllum-sericeum-jamaica-anna-atkins-and-anne-dixonFree Image from public domain licenseGleichenia immersa, Jamaica by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14249618/gleichenia-immersa-jamaica-anna-atkins-and-anne-dixonFree Image from public domain licenseLastrea filix mas, British by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14255939/lastrea-filix-mas-british-anna-atkins-and-anne-dixonFree Image from public domain licenseTrichomones crinitum, Jamaica by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14258067/trichomones-crinitum-jamaica-anna-atkins-and-anne-dixonFree Image from public domain licenseAspidium aculeatum, British by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14257739/aspidium-aculeatum-british-anna-atkins-and-anne-dixonFree Image from public domain licensePolypodium Aureum (Jamaica) by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14253619/polypodium-aureum-jamaica-anna-atkins-and-anne-dixonFree Image from public domain licenseAspidium trifoliatum, Jamaica by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14256880/aspidium-trifoliatum-jamaica-anna-atkins-and-anne-dixonFree Image from public domain licensePolypodium effusum, Jamaica by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14258167/polypodium-effusum-jamaica-anna-atkins-and-anne-dixonFree Image from public domain licenseAsplenium fragrans, Jamaica by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14257417/asplenium-fragrans-jamaica-anna-atkins-and-anne-dixonFree Image from public domain licenseHymenophyllum decurrens, Jamaica by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14258178/hymenophyllum-decurrens-jamaica-anna-atkins-and-anne-dixonFree Image from public domain licensePolypodium pinnatum, Jamaica by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14256851/polypodium-pinnatum-jamaica-anna-atkins-and-anne-dixonFree Image from public domain licenseLastrea thelypteris, British by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14257037/lastrea-thelypteris-british-anna-atkins-and-anne-dixonFree Image from public domain licenseAdiantum pedatum, N. America by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14258398/adiantum-pedatum-america-anna-atkins-and-anne-dixonFree Image from public domain licensePolypodium phegopteris, British by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14257059/polypodium-phegopteris-british-anna-atkins-and-anne-dixonFree Image from public domain licenseHymenophyllum Tunbridgense, British by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14257691/hymenophyllum-tunbridgense-british-anna-atkins-and-anne-dixonFree Image from public domain licenseBotrychium gracile, America by Anna Atkins and Anne Dixon https://www.rawpixel.com/image/14249437/botrychium-gracile-america-anna-atkins-and-anne-dixonFree Image from public domain licenseConfervae by Anna Atkins, Herschel Family and Anne Dixon https://www.rawpixel.com/image/14253438/confervae-anna-atkins-herschel-family-and-anne-dixonFree Image from public domain licenseBOSS Invades Atkins_06Members of the Fort Drum Better Opportunities for Single Soldiers teamed with the Atkins Functional… https://www.rawpixel.com/image/9654142/image-person-mountain-public-domainFree Image from public domain license