Union dead at Gettysburg

Chicago citation style
O'Sullivan, Timothy H., 1840-1882. Union dead at Gettysburg. 1863. Retrieved from the Digital Public Library of America, https://ark.digitalcommonwealth.org/ark:/50959/q524n605q. (Accessed August 19, 2018.)
APA citation style
O'Sullivan, Timothy H., 1840-1882, (1863) Union dead at Gettysburg. Retrieved from the Digital Public Library of America, https://ark.digitalcommonwealth.org/ark:/50959/q524n605q
MLA citation style
O'Sullivan, Timothy H., 1840-1882. Retrieved from the Digital Public Library of America <https://ark.digitalcommonwealth.org/ark:/50959/q524n605q>.
Note: These citations are programmatically generated and may be incomplete.