Envelope and letter, To: Patrick Barry Hayes, From: Fred Emmerich, August 23, 1861.

Chicago citation style
Emmerich, Fred. Envelope and letter, To: Patrick Barry Hayes, From: Fred Emmerich, August 23, 1861.. 1861. Retrieved from the Digital Public Library of America, https://digital.library.villanova.edu/Record/vudl:168151. (Accessed December 19, 2018.)
APA citation style
Emmerich, Fred, (1861) Envelope and letter, To: Patrick Barry Hayes, From: Fred Emmerich, August 23, 1861.. Retrieved from the Digital Public Library of America, https://digital.library.villanova.edu/Record/vudl:168151
MLA citation style
Emmerich, Fred. Retrieved from the Digital Public Library of America <https://digital.library.villanova.edu/Record/vudl:168151>.
Note: These citations are programmatically generated and may be incomplete.