Freeman, Peter - Age 20, Year: 1863 - 11th US Colored Heavy Artillery

Chicago citation style
War Department. The Adjutant General's Office. 3/4/1907-9/18/1947. Freeman, Peter - Age 20, Year: 1863 - 11th US Colored Heavy Artillery. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/38581431. (Accessed December 13, 2018.)
APA citation style
War Department. The Adjutant General's Office. 3/4/1907-9/18/1947, Freeman, Peter - Age 20, Year: 1863 - 11th US Colored Heavy Artillery. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/38581431
MLA citation style
War Department. The Adjutant General's Office. 3/4/1907-9/18/1947. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/38581431>.
Note: These citations are programmatically generated and may be incomplete.