This primary source comes from the Records of the Office of the Chief Signal Officer.
National Archives Identifier:
526217Full Citation: William M. (Boss) Tweed, N.Y.; 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/william-m-boss-tweed-ny, March 22, 2023]