This primary source comes from the Records of the Office of the Chief Signal Officer.
National Archives Identifier:
530479Full Citation: US Military telegraph station at Wilcox's Landing; ca. 1860 - 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/us-military-telegraph-station-at-wilcoxs-landing, October 13, 2024]