Unidentified photographer, 1856, Child with dog with blue-tinted blanket, Daguerreotype, 1/6 plate, Jeffrey Kraus Antique Photographics, Courtesy of Jeffrey Kraus (D82), LL/10955

Unidentified photographer, n.d., Post-mortem Daguerreotype of a little girl and her doll, Daguerreotype, 1/6 plate, Source requested, [Further information sought], LL/6741

Unidentified photographer / artist, 1855 (ca), Portrait of a Little Girl Wearing Elaborate Hat and Fur-lined Wrap, Ambrotype, 1/4 plate, Charles Schwartz Ltd, Courtesy of Charles Schwartz Ltd (www.cs-photo.com - #3747), LL/9185

Unidentified photographer, n.d., Girl with large muff and doll, Tintype, Larry Gottheim, Be-hold, Inc, Courtesy of Larry Gottheim - Be-Hold (46 / 65), LL/9055

Unidentified photographer, n.d., Portrait of a young lady wearing a coral necklace, Daguerreotype, 1/6 plate, Larry Gottheim, Be-hold, Inc, Courtesy of Larry Gottheim - Be-Hold (45 / 12), LL/10872

Unidentified photographer, n.d., Sisters holding Daguerreotype of mother, Daguerreotype, 1/6 plate, Private collection of Erin Waters, LL/18509

James M. Ford, 1854, March-September, Portrait of a Boy with Gold-Mining Toys, Daguerreotype, 1/2 plate, J. Paul Getty Museum, Object number: 84.XT.269.22, LL/50627

Unidentified photographer, n.d., Boy with daguerreotype viewer, Daguerreotype, 1/6 plate, Larry Gottheim, Be-hold, Inc, Courtesy of Larry Gottheim - Be-Hold (49 / 4), LL/18519

J. Paul, 1850 (ca), Portrait of a child, Daguerreotype, hand-coloured, National Science and Media Museum, Kodak Collection, LL/50408

Unidentified photographer, n.d., Twins in their checkered trousers, Daguerreotype, 1/6 plate, Larry Gottheim, Be-hold, Inc, Courtesy of Larry Gottheim - Be-Hold (47 / 43), LL/11340

Unidentified photographer, n.d., A child standing on a stool with one hand resting on a Robinson's Photographicon viewer., Tintype, 1/6 plate, hand-coloured, Archives of Modern Conflict OR National Gallery of Canada, LL/9972

Unidentified photographer, n.d., Portrait of a young girl, Daguerreotype, 1/6 plate, Capitol Gallery, Courtesy of Capitol Gallery (Fall 2007 Auction, #11), LL/22000

Rufus P. Anson, n.d., Portrait of a Girl with Ringlets, Daguerreotype, 1/6 plate, Larry Gottheim, Be-hold, Inc, Courtesy of Larry Gottheim - Be-Hold (50 / 9), LL/22293

Unidentified photographer, n.d., Girls with dove, Daguerreotype, 1/4 plate, Larry Gottheim, Be-hold, Inc, Courtesy of Larry Gottheim - Be-Hold (50 / 16), LL/22313

William Edward Kilburn, n.d., Portrait of a young girl, Daguerreotype, 1/4 plate, hand-tinted, Private collection of John Hannavy, LL/25153

Unidentified photographer, n.d., Girl with extremely long braids, Daguerreotype, 1/4 plate, Private collection of Mike Robinson, LL/27054

Unidentified Daguerreotypist, 1852 (ca), Standing boy holding hoop, Daguerreotype, 1/6 plate, Historical Society of Pennsylvania, Record Number: 5900, Collection: Cased Photographs Collection [3139], LL/44548

Unidentified photographer, n.d., Sleeping Baby, Daguerreotype, 1/6 plate, Christopher Wahren Fine Photographs, Courtesy of Christopher Wahren Fine Photographs (ia906), LL/13022

Jesse Harrison Whitehurst, 1855 (ca), Sleeping Baby, Daguerreotype, 1/2 plate, with applied color, 4 1/4 x 5 1/2 ins (10.8 x 14.0 cm), American Art Museum, Smithsonian Institution, Museum purchase from the Charles Isaacs Collection made possible in part by the Luisita L. and Franz H. Denghausen Endowment, 1994.91.289, LL/45568

E. Dennis, 1848, 15 November, The Thankful Family, Daguerreotype, 1/9 plate, Christopher Wahren Fine Photographs, Courtesy of Christopher Wahren Fine Photographs (ib51), LL/13906

Unidentified photographer, n.d., Child with birdcage [Enfant à la cage à oiseau], Daguerreotype, 1/6 plate, Interencheres - La Gallerie de Chartes, Collection Henry Koilski (Galerie de Chartres, Auction, 8 October 2011, Lot: 26), LL/44260

Unidentified photographer / artist, n.d., Untitled, Guernsey's - New York, LL/23054

Unidentified photographer, n.d., A young boy with his beach toys, Tintype, 1/6 plate, Stereographica - Antique Photographica, Courtesy of Bryan and Page Ginns (#17 / 156), LL/17457

Unidentified photographer, 1850 (ca), Portrait of a young girl, Daguerreotype, 1/6 plate, Archives of Modern Conflict OR National Gallery of Canada, LL/11422

Samuel Broadbent, 1855, 15 October, George E. Carter, Daguerreotype, 1/6 plates, Historical Society of Pennsylvania, Record Number: 2553, Collection: Cased Photographs Collection [3139], LL/44532

Louis François Saugrin, 1852, Study of Brother and Sister, Daguerreotypes, 1/4 plate, finely hand-coloured, Charles Isaacs Photographs, Inc, LL/4204

Eduard Isaac Asser, 1852-1854, Portrait of Lodewijk Asser, the photographer's son, Album (mounted on paper), Salted paper print from wet collodion on glass negative, Rijksmuseum, Copyright © Rijksmuseum Amsterdam (RP-F-AB12278-V), LL/25765

Eduard Isaac Asser, 1852-1854, Portrait of Lodewijk Asser, the photographer's son, on a tricycle, Album (mounted on paper), Salted paper print from wet collodion on glass negative, Rijksmuseum, Copyright © Rijksmuseum Amsterdam (RP-F-AB12278-L), LL/25764

Thomas Rodger Sr., 1853 (ca), Portrait of a young girl, Salt print, from calotype negative on thin paper, 20.2 x 15.6 cm, Bassenge Photography Auctions, Photography 19th-21st Century (1 June 2011) Lot: 4088, LL/43717

Charles Nègre, 1853 (ca), The Sons of Rachel and Walenski [Le fils de Rachel à droite, fils de Walenski], Salted paper print, from glass negative, 16.1 x 11.7 cm (6 5/16 x 4 5/8 ins), Metropolitan Museum of Art, Gilman Paper Company Collection, Purchase, The Howard Gilman Foundation Gift, 2002, Accession Number: 2002.277, LL/40493

Ernest Benecke, 1852, [Children from the Village of Kalabshah, Nubia], Salted paper print from paper negative, 17 x 21.5 cm (6 11/16 x 8 7/16 ins), Metropolitan Museum of Art, Gilman Collection, Purchase, Alfred Stieglitz Society Gifts, 2005, Accession Number: 2005.100.257, LL/40538

Unidentified photographer, n.d., Dressed in green, Ambrotype, 1/6 plate, Larry Gottheim, Be-hold, Inc, Courtesy of Larry Gottheim - Be-Hold (47 / 62), LL/11345

Unidentified photographer / artist, n.d., Girl and a dog, Ambrotype, 1/6 plate, Private collection of Steven Evans, LL/13098

Unidentified photographer / artist, n.d., Untitled [A young traveller with a protective angel], Stereocard, half, Private collection of Kevin Yee, LL/31158

Julia Margaret Cameron, 1872, Florence Fisher - Full Face (Old Master), Study No. 1, Albumen silver print, 35 x 26.2 cm, National Gallery of Canada / Musée des beaux-arts du Canada, Purchased 1972, no. 21281, LL/38972

John Thomson, 1878, A Cypriot boy, Famagusta, Cyprus, Albumen print, Cambridge University Library, Royal Commonwealth Society, © Cambridge University Library, RCS Y3018B/27, LL/40108

Lewis Carroll, 1876, Hugh et Brooke Kitchin, Albumen print, from a glass negative, 14.2 x 10.4 cm, Musée d'Orsay, © photo musée d'Orsay / RMN, PHO 1985 349, LL/37345

Oscar Gustave Rejlander, 1860 (ca), Homeless, Albumen print, 20.2 x 14.9 cm, George Eastman Museum, Museum Purchase: Miller-Plummer Fund, GEH NEG: 34952, 84:0081:0001, LL/37360

Lewis Carroll, 1875, St. George and the Dragon, Albumen silver print, from glass negative, 11.6 x 14.8 cm (4 9/16 x 5 13/16 ins), Metropolitan Museum of Art, Gilman Collection, Purchase, Ann Tenenbaum and Thomas H. Lee Gift, 2005, Accession Number: 2005.100.21, LL/40540

Julia Margaret Cameron, 1865 (print) 2007 (publication), My Grandchild Archie, [An American Gallery], Book plate, Lumiere Press, Courtesy of Lumiere Press and Howard Greenberg Gallery, LL/27663

Samuel J. Jarvis, 1886, F.C.C. Lynch, Albumen silver print, 14.1 x 10.4 cm (oval, irregular), National Gallery of Canada / Musée des beaux-arts du Canada, Gift of the Estate of Frank C.C. Lynch, Ottawa, 1967, no. 34992.80, LL/38969

J.H. Titus, n.d., Portrait of a child, Carte de visite, Private collection of Richard O. Titus, Courtesy of Richard O. Titus, LL/11552

Emilie Bieber, 1869-1870 (ca), Unknown children, Carte de visite, Private collection of T. Max Hochstetler, LL/20783

T.L. Phillips (Lowellville), n.d., Double portrait of a young girl from Lowellville, Ohio, Carte de visite, Early Image: 19th & Early 20th Century Photographs, Courtesy of Josh Wiesner - The Early Image, LL/14207

Abdullah frères, 1865, Portrait of a boy [Joseph S. Greene], Carte de visite, Private collection of Andrea Cesari, LL/29570

Unidentified photographer / artist, n.d., Portrait of a young girl with crimped hair, Carte de visite, Private collection of Andrea Cesari, LL/29583

Leon Van Loo, n.d., Portrait of a child in a studio setting, Carte de visite, Private collection of Andrea Cesari, LL/29601

A.M. McKenny (Portland), 1860s, Portrait of a boy holding a hat, Carte de visite, Private collection of Andrea Cesari, LL/29610

Charles Sherrer (Neufchateau), 1870 (ca), Portrait of three children, Carte de visite, 6 x 10.4 cm, Vintage-Photos, LL/32630

J.H. Titus, n.d., Showing the talent of the photographer, J.H. Titus, at taking child portraits, Cabinet card, composite, Private collection of Richard O. Titus, Courtesy of Richard O. Titus, LL/11549

A.E. Hotchkiss, n.d., A young girl in a studio setting with a Holmes-Bates stereoscope and views on the table beside her., Cabinet card, Stereographica - Antique Photographica, Courtesy of Bryan and Page Ginns (#18 / 147), LL/21593

Unidentified photographer, n.d., Black Boy with his Dog, Tintype, CDV size, Larry Gottheim, Be-hold, Inc, Courtesy of Larry Gottheim - Be-Hold (50 / 32), LL/22339

Unidentified photographer, 1880 (ca), By the sea, Tintype, carte de visite size, Private collection of Steven Evans, LL/11546

E.A. Alden, n.d., Child on staircase, Tintype, stereo, half, Larry Gottheim, Be-hold, Inc, Auction: 25 November 2013, Lot: 42B, LL/51761

Unidentified photographer, 1870 (ca), Girl With Polka Dot Dress, Tintype, 8 1/2 x 6 1/2 in (full plate), Paul Cava Fine Art, Courtesy of Paul Cava Fine Art, LL/10840

Unidentified photographer, n.d., Child in front of a painted backdrop, Tintype, 1/2 plate, Larry Gottheim, Be-hold, Inc, Courtesy of Larry Gottheim - Be-Hold (47 / 69), LL/11349

Unidentified photographer, n.d., Dreams of Childhood, Tintype, Christopher Wahren Fine Photographs, Courtesy of Christopher Wahren Fine Photographs (Skylight Gallery Catalog 27, October, 23, 2008 #39), LL/30947

Unidentified photographer, 1880s, Portrait of a Toddler (with Hidden Parent), Tintype, full plate, hand-painted, Charles Schwartz Ltd, Courtesy of Charles Schwartz Ltd (www.cs-photo.com - #6404), LL/9075

Unidentified photographer, 1870 (ca), Brother and sister, Tintype, full plate, hand-coloured, 7.75 x 10 in, Charles Schwartz Ltd, Courtesy of Charles Schwartz Ltd (www.cs-photo.com - #6402), LL/9064

Unidentified photographer, 1895 (ca), A little girl sitting on a bench outdoors with her doll, Cyanotype, 4 1/2 x 3 1/2 in, J. Cosmas Vintage Photography, LL/32650