MLA
Allgood, Susie W. Opossum and Taters for Three : Two African American Men and One Woman with a Branch and Two Possums. 1909. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 69. https://digital.library.emory.edu/purl/310jsxksr6-cor.
APA, 6th edition
Allgood, S. W. (1909). Opossum and taters for three : two African American men and one woman with a branch and two possums (Box 69) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/310jsxksr6-cor.
Chicago
Allgood, Susie W. “Opossum and Taters for Three : Two African American Men and One Woman with a Branch and Two Possums.” 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/310jsxksr6-cor.