Provided as a suggestion only. Please verify these automated citations against the guidelines of your preferred style.

Letter from Clay to Lizzie (Miss M. E. Beard) - January 15th, 1865

MLA

Clay [unknown last name]. Letter from Clay to Lizzie (Miss M. E. Beard) - January 15th, 1865. January 15, 1865. Civil War Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/668x95x7bg-cor.

APA, 6th edition

Clay [unknown last name]. (January 15, 1865)[Letter from Clay to Lizzie (Miss M. E. Beard) - January 15th, 1865]. Civil War Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/668x95x7bg-cor.

Chicago

Clay [unknown last name], Letter from Clay to Lizzie (Miss M. E. Beard) - January 15th, 1865, January 15, 1865, Civil War Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/668x95x7bg-cor.