This primary source comes from the Records of the Office of the Chief Signal Officer.
National Archives Identifier:
524564Full Citation: Camp of the 44th N.Y. Inf. near Alexandria, VA; ca. 1860 - ca. 1865; Mathew Brady Photographs of Civil War-Era Personalities and Scenes, 1921 - 1940; Records of the Office of the Chief Signal Officer, Record Group 111. [Online Version, https://www.docsteach.org/documents/document/camp-of-the-44th-ny-inf-near-alexandria-va, March 28, 2024]