Lockwood Todd, Willie Lincoln, and Tad Lincoln

Chicago citation style
Brady’s National Photographic Portrait Galleries. Lockwood Todd, Willie Lincoln, and Tad Lincoln. 1861. Retrieved from the Digital Public Library of America, http://contentdm.acpl.lib.in.us/cdm/ref/collection/p15155coll1/id/57. (Accessed June 23, 2018.)
APA citation style
Brady’s National Photographic Portrait Galleries, (1861) Lockwood Todd, Willie Lincoln, and Tad Lincoln. Retrieved from the Digital Public Library of America, http://contentdm.acpl.lib.in.us/cdm/ref/collection/p15155coll1/id/57
MLA citation style
Brady’s National Photographic Portrait Galleries. Retrieved from the Digital Public Library of America <http://contentdm.acpl.lib.in.us/cdm/ref/collection/p15155coll1/id/57>.
Note: These citations are programmatically generated and may be incomplete.