MLA
Caperton, Hugh. Letter in the Form of a Poem Written to Nathaniel Beverly Tucker by Hugh Caperton and Conveying the Good Wishes of 20 of Tucker's Friends Assembled at a Dinner in Richmond - December 28, 1869. 1869. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 9, Folder 38. https://digital.library.emory.edu/purl/235gb5mmpc-cor.
APA, 6th edition
Caperton, H. (1869). Letter in the form of a poem written to Nathaniel Beverly Tucker by Hugh Caperton and conveying the good wishes of 20 of Tucker's friends assembled at a dinner in Richmond - December 28, 1869 (Box 9, Folder 38) [Poems]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/235gb5mmpc-cor.
Chicago
Caperton, Hugh. “Letter in the Form of a Poem Written to Nathaniel Beverly Tucker by Hugh Caperton and Conveying the Good Wishes of 20 of Tucker's Friends Assembled at a Dinner in Richmond - December 28, 1869.” Poems. Civil War Collection, 1869. Box 9, Folder 38. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/235gb5mmpc-cor.