MLA
Jones, Leroy William. Four African Americans Lynched in Mount Vernon, Posey County, Indiana. 1878. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 15. https://digital.library.emory.edu/purl/3246q573t7-cor.
APA, 6th edition
Jones, L. W. (1878). Four African Americans lynched in Mount Vernon, Posey County, Indiana (Box 15) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3246q573t7-cor.
Chicago
Jones, Leroy William. “Four African Americans Lynched in Mount Vernon, Posey County, Indiana.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, 1878. Box 15. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3246q573t7-cor.