MLA
tribune., National. Kennedy Farmhouse (Sharpsburg, Md.), John Brown's Headquarters. 1909. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 69. https://digital.library.emory.edu/purl/733rv15dzc-cor.
APA, 6th edition
tribune., N. (1909). Kennedy Farmhouse (Sharpsburg, Md.), John Brown's headquarters (Box 69) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/733rv15dzc-cor.
Chicago
tribune., National. “Kennedy Farmhouse (Sharpsburg, Md.), John Brown's Headquarters.” Postcards. Robert Langmuir African American Photograph Collection, 1909. Box 69. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/733rv15dzc-cor.