Cite

The guard - 69th infantry N.Y

MLA

Trenkle, Charles, Cpl. The guard - 69th infantry N.Y. Folder 28. [1916 or 1917]. https://collections.library.yale.edu/catalog/2017148.

APA, 6th edition

Trenkle, Charles, Cpl. (["Folder 28"])([1916 or 1917])[The guard - 69th infantry N.Y]. https://collections.library.yale.edu/catalog/2017148.